Most Popular Baby Names by Decade: 1920s to Today

Every decade leaves a fingerprint on the birth certificate. Line up the number-one baby names from the 1920s to today and you can read a century of American life, one generation at a time: the Marys and Roberts of the interwar years, the Lindas and Michaels of the postwar boom, the Jennifers and Jessicas of the 1980s, and the Olivias and Noahs topping the charts right now. This is the data post: a clear, decade-by-decade list of the most popular US boy and girl names, drawn from Social Security records, with a note on what was happening each time. If you want the fuller story of why tastes shifted, our companion decade-by-decade trends guide walks through the forces behind the numbers.

A century of number-one names

The single most striking thing about the last hundred years of naming is how differently the two columns behave. The boys' list barely moves for decades at a stretch. Robert, James, and Michael passed the top spot back and forth for the better part of the 20th century, so that a boy born in 1930 and a boy born in 1980 could easily share a name. The girls' list, by contrast, churns. Mary held on for an astonishing run, but once it let go the top spot changed hands almost every decade, from Linda to Lisa to Jennifer to Jessica to Emily to Emma. That difference is the first real pattern worth noticing, and it holds true across the whole span. Parents have always been more willing to experiment with girls' names and more conservative with boys' names, and the charts show it in black and white.

All of the figures below come from the same place: the annual name totals published by the US Social Security Administration, which has tracked given names on Social Security card applications going back to 1880. It is the most complete record of American naming that exists. Ranks and top names in this guide are representative and approximate, chosen to capture each decade as a whole rather than to pin down a single year, because the number-one name often changed once or twice within a decade. Where that happened, we flag it in the notes.

The rise and fall of a name, in one chart

Before the full list, it helps to see what a naming lifecycle actually looks like. The chart below tracks three girls' names across the century by their US popularity rank, where a lower rank means more popular and rank 1 is the single most-used name that year. Watch how differently they behave. Mary drifts down slowly from the very top. Linda erupts in the 1940s and fades just as fast. Jennifer comes from nowhere to dominate the 1970s and 1980s, then recedes.

Three shapes, three stories. Mary is the long reign, a name so dominant that its slow decline still left it comfortably in the top 150 a hundred years later. Linda is the sudden fashion, a name propelled to the summit by a popular song and the postwar mood, then abandoned almost as quickly. Jennifer is the classic spike, the name that defined a generation of American girls and became, precisely because of that saturation, the name their own daughters would not be given. Keep those three shapes in mind as you read the decade list, because almost every name follows one of them.

The 1920s to 1940s: Mary, Robert and John

The interwar decades were an age of stability on the charts. Mary sat at number one year after year, a name carried by both religious tradition and sheer familiarity, and it would not surrender the top spot until the 1960s. Alongside it stood a small, steady set of biblical and classic girls' names: Dorothy, Helen, Betty, Margaret, and Barbara. The boys' side was equally settled. Robert and John traded the top position through the 1920s and 1930s, with James and William never far behind. These were solid, unshowy names rooted in family and faith, the kind passed down from grandfather to grandson without a second thought.

By the 1940s, the first cracks of change appeared on the boys' list. James pushed to the front and stayed there through much of the decade, a name that felt dignified and modern at once. Mary held firm on the girls' side, but Linda was already climbing hard behind it, a sign of the upheaval to come. What defines this whole era is continuity. A child named in 1925 and a child named in 1945 belonged, on paper, to the same naming world.

The 1950s and 1960s: Linda, Susan, James and Michael

The postwar baby boom was the moment the girls' chart broke open. Linda, lifted by a hugely popular song of the same name, surged past Mary to become the number-one girl's name for several years around the start of the 1950s. It was the first time in living memory that Mary had been dethroned, and it signalled a new willingness among parents to follow fashion rather than tradition. Behind Linda came a wave of bright, fresh-sounding names: Susan, Deborah, Karen, and Patricia. By the 1960s, Lisa had taken over the top spot, another short, modern name with no particular religious weight, chosen simply because it sounded current.

The boys' list saw its own quiet revolution. Michael rose to number one in the mid-1950s and then did something no boy's name had done in generations: it stayed there. Michael would remain the most popular boy's name in America, with only brief interruptions, for close to half a century. David, John, and James filled out the top tier, but Michael was the anchor. If you want to understand how one name can define five decades of American boyhood, Michael is the case study, and it is exactly the kind of long arc our baby name trends guide traces in detail.

The 1970s and 1980s: Jennifer, Jessica, Michael and Christopher

If one name owns the 1970s, it is Jennifer. Almost unheard of before mid-century, Jennifer exploded into the number-one girl's name and held it for most of the 1970s and into the early 1980s, so thoroughly that for a stretch of years roughly one in every fifty American girls was named Jennifer. It is the textbook example of the spike shape from the chart above: a meteoric rise, a brief reign, and then a decline driven by the very ubiquity that had made it a hit. Around it clustered Amy, Melissa, Michelle, and Kimberly, a whole cohort of soft, contemporary names.

By the 1980s the girls' top spot had passed to Jessica, with Ashley and Amanda pressing close behind. On the boys' side, Michael simply refused to move, holding number one throughout both decades, though Christopher, Matthew, and Jason rose to become the defining supporting cast of the era. The 1980s boy, statistically, was a Michael, a Christopher, or a Matthew, and often had two friends with the same name in his class. That crowding is not a footnote. It is the mechanism that guarantees these names will feel dated to the next generation, and it is why the parents of the 2000s reached so eagerly for something different.

The 1990s and 2000s: Emily and Jacob

The turn of the millennium brought a decisive change in taste. Parents began turning away from the sleek, invented-feeling names of the 1980s and back toward older, softer, more traditional-sounding choices. On the girls' list, Jessica and Ashley gave way to Emma and, above all, Emily, which became the number-one girl's name in America for most of the 2000s. Emily is a vintage revival, a name that had been quietly out of fashion for decades and returned feeling both classic and fresh. Alongside it rose Madison, Hannah, and Abigail, names with an old-fashioned warmth that would have felt out of place in 1985.

The boys' chart finally saw Michael's long reign end. Jacob, another biblical name in the same gentle, traditional vein, climbed to number one and stayed there for over a decade. The shift from Michael to Jacob is more meaningful than it looks. It marks the moment American parents traded mid-century modernism for a warmer, more nostalgic sound, the same instinct that would soon carry Noah and Liam to the top. This is the pivot point of the whole century, the hinge our trends breakdown returns to again and again, because everything on the current charts descends from it.

The 2010s and 2020s: Olivia and Noah

The names topping the charts today are the full flowering of that vintage turn. On the girls' side, Emily handed off to Sophia, then Emma, and then Olivia, which has been the most popular girl's name in America in recent years. Olivia is soft, antique, and literary all at once, a name that would have sounded like a great-grandmother's in 1960 and now sounds effortlessly current. Isabella, Ava, and Charlotte round out a top tier that leans hard into old-world elegance.

The boys' list tells the matching story. Noah reached number one in the mid-2010s, the first single-syllable, ends-in-a-vowel biblical name to lead the chart, and it has stayed at or near the very top ever since, trading the summit with Liam. Together, Olivia and Noah are the perfect emblem of modern American taste: gentle in sound, ancient in origin, and utterly of the moment. They are also, tellingly, names that would have seemed impossibly old-fashioned to a parent in the Jennifer-and-Christopher 1980s, which is exactly why they feel fresh now. To see which names are climbing fastest to join them, our roundup of the fastest-rising baby names of 2026 tracks the next wave in real time.

The full decade-by-decade table

Here is the century at a glance: the representative number-one boy and girl name for each decade from the 1920s to the 2020s, with a short note on what was happening. Ranks and top names are drawn from SSA data and are representative of the decade as a whole, since the leading name sometimes changed within a given ten-year span.

What the decades reveal about naming

Read as a whole, the century tells a consistent story, and three patterns stand out. The first is the roughly hundred-year cycle. Names do not vanish forever; they rest. A name typically feels freshest about three or four generations after its last peak, once it has shed its grandparent association and taken on an antique charm instead. Emily, Emma, and Olivia were all common a century before their modern revival, sat out the middle of the 20th century, and returned precisely when they had been gone long enough to feel new. The Marys and Lindas of today's nursery are simply the names that are currently mid-nap, and some of them will lead the charts again around the 2060s.

The second pattern is the widening of the pool. A top name in 1950 accounted for a far larger share of babies than a top name does now. The charts have flattened, with the number-one name commanding a thinner slice each decade, because parents increasingly prize distinctiveness and draw from an ever larger set of options, including international names, surnames used as first names, and creative respellings. You can see the breadth of that pool on our girl names and boy names hubs, and the appetite for the newest arrivals on our modern and trendy names page.

The third pattern is the steady swing between two poles: the modern-sounding and the nostalgic. The mid-century reached for the sleek and new, with Linda, Lisa, Gary, and Barry. The turn of the millennium swung back toward the old and warm, with Emma, Olivia, Jacob, and Noah. Naming fashion is not random. It is a pendulum, and knowing which way it is swinging tells you a great deal about which names are about to rise. For the full sweep of that argument, decade by decade, our baby name trends breakdown is the companion piece to this list, and it is worth reading alongside the table above. You can also compare how the same roots move through different cultures on our baby names by origin hub.

Questions parents ask

What was the most popular name of the whole century? On the girls' side, Mary is the runaway answer, having sat at number one for the longest continuous stretch of any name in the record. For boys, Michael takes the crown, leading the chart for close to half a century from the mid-1950s onward.

Why do girls' names change so much faster than boys' names? Parents have consistently treated boys' names as heritage to be preserved and girls' names as fashion to be enjoyed. The result, visible in every decade above, is a boys' list that moves at a glacial pace and a girls' list that turns over almost completely each generation.

Are today's top names less dominant than they used to be? Yes. The number-one name now covers a much smaller share of babies than it did in 1950 or 1980, because the overall pool of names in use has grown enormously. Being number one today is a far less crowded distinction than it once was.

Will names like Olivia and Noah date the way Jennifer did? Every top name eventually cedes the summit, and the ones at the very peak today will one day read as markers of this era. But because the pool is so much wider now, no single current name is as saturated as Jennifer was, so the dating effect is likely to be gentler.

The bottom line

A hundred years of number-one names is more than a curiosity. It is a map of how American families think about tradition, fashion, and the future they imagine for a child. The Marys gave way to Lindas, the Lindas to Jennifers, the Jennifers to Emilys, and the Emilys to Olivias, while the boys moved slowly from Robert through Michael to Noah. Each name was, in its moment, the obvious choice, and each in turn came to sound like the decade that loved it. If this list has you wondering where the pendulum is heading next, read the full story in our decade-by-decade trends guide, then browse the current front-runners on our girl names and boy names pages to find the one that will define your family's own chapter.