This Anglicized form of Bearach or short form of Finbarr was in the Top 200 in the USA for 50 years until the early 80s when it rapidly fell out of favor. Barry has not yet found popularity in the modern era - but that may well change as people rediscover their love of classic figures like musician Barry White, baseballer Barry Bonds or even Barack Obama, whose nickname as a young man was Barry.

Brogan is a cheerful Irish surname that would fit right in with the Logans and Br-starting names now trendy for boys. It's been on the pop list for the past three years, though it's sliding again. Its history includes Saint Brogan (Broccan in Gaelic), who was Saint Patrick's nephew and scribe.

Hayes is a stylish surname name, reminiscent of vintage Hazel, contemporary Collins, nature-inspired Forest and Rivers, and older unisex favorites like Hayden, Reese, and Casey. While it has seen increased use for girls in recent years, it is predominantly used for boys.

While Larkin takes this name from bird to surname, there are actually more female Larkins these days than male, and it's a name that works as well for either gender. It has the literary connection to poet Philip Larkin too.

Simple, usable surname choice.

This unisex name, the seventh most popular surname in Scotland, can make a more unusual Cameron alternative. It is represented on the girls' side by TV news correspondent Campbell Brown, for whom it was a family name, Brown was born Alma Dale Campbell, Alma Dale being her grandmother's name,and Campbell her mother's maiden name.

Different origin from the Welsh Dylan, but increasingly used as a variant spelling to honor Bob Dylan or Dylan Thomas. Still, the Dylan spelling is found 20 times as often as Dillon.

One of the original unisex Irish surname names, energetic Casey bounced onto the scene in the 1960s, then peaked in the 1980s for both boys and girls. Today Casey is having a resurgence for both girls and boys and re-entered the charts on the girls' side, likely due to the character Kayce Dutton (pronounced like Casey) on the hit show Yellowstone.

The additional syllable makes Lark a masculine surname name, borne by poet Philip Larkin.

Sheridan is one surname-name that hasn't come into style for either gender, though it was lightly used for boys around the turn of the 20th century and girls 100 years later. The name does have an attractive sound and an appealing meaning.

Cheerful but laidback, surname-style Delaney is derived from the Old Irish name Dubhshláine and has become a familiar choice for girls in recent decades. Nevertheless, it has also been used for boys since the early 1900s and was equally - though rarely - given to both, right up until the 1990s.

A winning last-name-first Celtic choice, Flynn is still mostly used for boys, such as the son of Orlando Bloom and Miranda Kerr. Though Flynn is definitely one of the Irish surname names, from Quinn to Flannery to Makenna, that makes one of the trendy boy names for girls".

Tegan is a Welsh saint's name. While some may conflate it with the Irish Teagan, they have different roots and meanings though both are used for girls as well as boys. Teagan is the more usual spelling and tips more heavily girlward, though Tegan runs about four to one girls versus boys. Tegan is pronounced with a long e sound in the first syllable, while Teagan can be pronounced either tee-gan or tay-gun.

Stylish and boyish but could work for a girl -- especially one with brown eyes -- and Sully is a quirky and jaunty nickname.

This was Irish name was once used exclusively for boys, and remains so in England and Wales where it's a Top 50 choice. In the US, however, celebs Jason Sehorn, Angie Harmon, and Lisa Marie Presley inspired many parents to consider this name for girls instead, after they chose it for their daughters. In fact, up until 2024, it ranked considerably higher for girls than it did for boys.

Inextricably tied to the former president, Reagan is a handsome surname name with a cool, current sound. Gender-neutral nickname Ray/Rae is also very on-trend right now.

Finnigan is another way to spell Finnegan, one of the energetic Irish surname-names in vogue now. One note: While Finnigan, Finnian, Finley and so on are appealing names on their own, you don't need to use a longer form to get to Finn, which is a perfectly proper name all on its own.

Eilish is one of those Irish names that, thanks to a celebrity, has suddenly become much more familiar to English speakers. Irish-American singer Billie Eilish (Eilish is actually one of her middle names) introduced the wider world to this Irish name as actress Saoirse Ronan did with hers.

Brennan is a winning Irish surname name, more modern than Brian or Brendan, more unusual than Conor and Aidan. The only possible problem with Brennan: people might think you're saying Brendan.

The name of three hundred saints, a mustard, and your own baby boy. Coleman was off the US Top 1000 list for much of the 1960s and 1970s, but it was a mainstay before and has been for most years since. It could be an interesting way to honor a Colin or Cole.