boy's name
Riordan
- Origin Irish
- Gender Boy
- Syllables 2
- Letters 7
- Popularity Rare
- Births on record 402
Riordan is a boy's name with 2 syllables. In 2025 it was given to 12 babies in the United States. It is a rare choice.
- Riordan is a name of Irish origin.
- Peaked in 2013, when 18 babies were given the name.
- Its usage has held steady over the past decade.
- Today about 1 in 276,319 babies in the United States is given this name.
- First appears in US birth records in 1986.
- 2 syllables, with the stress on syllable 1.
Riordan over time
Births per decade in the United States, 1980s to 2020s. The striped bar is the 2020s, still in progress — it covers 2020 to 2025, not a full ten years.
Show the numbers
| Decade | Births |
|---|---|
| 1980s | 17 |
| 1990s | 37 |
| 2000s | 97 |
| 2010s | 97 |
| 2020s (to 2025) | 49 |
How popular is Riordan?
In 2025, Riordan was given to 12 babies in the United States. It is a rare choice.
Where Riordan is used
US figures omit any name given to fewer than five babies in a year, so the rarest names are absent from the source rather than absent from use. Data & sources.
Names that peaked alongside Riordan
These names rose and fell in the same era, which is why they tend to sound like they belong together.
Parents who like Riordan also like
Names whose popularity has risen and fallen in step with Riordan over the last century — the same taste, a different name.
Sibling names for Riordan
Names from the same era that won't rhyme or share an initial with Riordan — the two things that make a sibling set grate.
Common questions about Riordan
How popular is the name Riordan?
In 2025, Riordan was given to 12 babies in the United States. It is a rare choice.
Is Riordan a girl's or a boy's name?
Riordan is given almost entirely to boys in birth records.
How many syllables are in Riordan?
Riordan has 2 syllables.
When was Riordan most popular?
Riordan peaked in 2013, when 18 babies were given the name. Its usage has held steady over the past decade.
Is Riordan a good name?
That is not something records can settle, but they can tell you what you would be choosing. Riordan currently ranks #6,936 in the United States. Its usage has held steady over the past decade. Everything else — how it sounds with your surname, who it reminds you of — is yours.