Female and male first names : Irish.

Riordan is an Irish name of ancient origins meaning 'little red one' or 'little red-haired one,' derived from the old Irish name "Ríordán," with roots tracing back to Saint Ríodán, founder of Clonard monastery, and carrying connotations of royalty, strength, and resilience.

Roan is an Irish name originally derived from the surname Ó Ruan, meaning 'little seal', and was historically associated with individuals having dark hair or eyes due to seals' dark fur and eyes. This unique name has evolved into a modern given name, bearing a rich history dating back to ancient Ireland, including being borne by notable figures such as Ruaidhrí mac Tairrdelbach Ua Conchobair, also known as 'Roan' due to his dark complexion.

Roanan is an enigmatic given name of uncertain origin, possibly Irish-inspired but without concrete evidence, and lacking a widely accepted meaning.

Roanin is an Irish given name derived from the surname Ó Ruadháin, meaning 'descendant of Ruadhán', itself derived from 'ruadh' meaning 'red-haired'.

Roarke is an Irish surname turned given name meaning "from Rourke's field" or "red king's estate.

Roary is an Irish given name derived from the surname Ó Raghallaigh, meaning "descendant of Raghallach," which translates to "little loud one" or "noisy little one," suggesting liveliness and energy.

Robbie is an Irish name meaning "bright fame" or "famous", derived from Old Norse Hróðgeirr. Historically used as both a given name and nickname for Robert, it was popular among medieval Irish Celts but later fell out of favor before experiencing a 20th-century resurgence in English-speaking countries. Today, Robbie is considered unisex but more commonly used for boys. Notable people with this name include Australian cricketer Robbie Marsh and Scottish footballer Robbie Neilson.

Robertlee is a distinctive American male name created by combining "Robert" (meaning 'bright fame') and "Lee", with multiple origins including Scottish ('from the meadow'), Irish ('dark-haired'), or shortened form of names like Leopold. While its meaning loses individual significance when combined, Robertlee remains an established yet uncommon name since the late 19th century, with its popularity recently increasing due to its unique sound and strong roots.

Rockne is an uncommon Irish given name derived from the surname 'Ruadhcú', meaning 'red dog' or 'red-haired dog'.

Roe is a rare female given name of Irish origin, derived from the Gaelic surname "Ó Ruadh," meaning "descendant of Rudh," an old Irish personal name possibly signifying "red" or "ruddy.

Roenick is an Irish name derived from the surname Ó Raghallaigh, meaning 'descendant of the rocky hill'.

Rogan is an Irish unisex given name derived from the surname Ó Raghallaigh meaning 'descendant of Ragallach'.

Rohan, of Irish origin, means 'little red-haired one' and has been used by influential figures in Irish history since the 10th century.

Rohnan is an Irish male given name meaning "little red-haired one," associated with the Tuatha Dé Danann in Irish mythology.

Roic is an Irish name that evolved from Ruadhri, meaning 'red king'.

Ronan is an Irish unisex name meaning "little seal", derived from the Irish word "ron".

Rontrell is an African-American name derived from Ronald ('strong as a spear') and Trevor ('village'). It signifies strength, leadership, and adaptability.

Rooney is a distinctive given name of Irish origin, derived from the surname "O Ruadháin," meaning "descendant of Ruadhán," which translates to "little red-haired one." While it's historically been used as a surname, it has recently gained popularity as a given name due to its unique sound and strong Irish roots.

Rooney is an Irish-origin given name derived from the Norman-French surname O'Ruanaid, meaning "descendant of Roland". It gained popularity as both a given name and a surname, with notable bearers including actor Mickey Rooney and former Irish Taoiseach Bertie Ahern.

Rorey is a rare and distinctive name of unknown origin, believed by some to have Irish or Scottish roots, though this has not been proven. Its meaning remains unclear, but its unique sound and spelling make it memorable. Despite its rarity, Rorey has been used for centuries and can be found globally today.

Rori is a captivating Irish name derived from Rory, meaning 'red king' or 'red-haired king', with historic roots tracing back to medieval Ireland.

Rorke is a rare Irish name derived from "Ruairc," meaning "red king" or "powerful chief.

Rorry is an uncommon Irish name derived from the surname O'Rourke, meaning "red king". It's believed to be a variant of Rory, and is associated with the powerful medieval O'Rourke clan known for their bravery and warrior spirit in County Leitrim.