Caitlin vs Rhiannon

Head to head

Ranks are only compared within one published list and one year. Two ranks from different years, from a boys' and a girls' list, or from different registrars are not comparable, so they are not placed side by side.

• New South Wales, Australia · Girls

  In 1999, Caitlin was ranked #14 and Rhiannon #92 among girls in New South Wales, Australia.

• Northern Ireland · Girls

  In 2010, Caitlin was ranked #28 and Rhiannon #366 among girls in Northern Ireland.

• Republic of Ireland · Girls

  In 2019, Caitlin was ranked #152 and Rhiannon #871 among girls in Republic of Ireland.

• England and Wales · Girls

  In 2025, Caitlin was ranked #1028 and Rhiannon #1407 among girls in England and Wales.

Caitlin and Rhiannon over time

Caitlin and Rhiannon appear together in 4 published lists, across 79 years of shared records. Caitlin held the stronger position in more years in 4 of them, Rhiannon in 0.

The order between them changed and held in one of those lists — a change in that published list, never a claim that one name displaced the other.

Rhiannon reached its own highest recorded position earlier in 4 of those lists, and Caitlin in none. Each position is a place inside its own list, so this compares when they peaked and never how high.

Counted list by list. Two names in the same published list are measured on the same scale in the same year, so those comparisons are real — but positions from different lists are not, so nothing here is combined into an overall standing.

List by list

• England and Wales · Girls30 shared years, 1996–2025

  Caitlin held the stronger position in 30 of those years, Rhiannon in 0.

  Highest recorded here: Caitlin #21 in 2001, Rhiannon #83 in 1998.

  The order between them never changed and held in this list.

  Most recent shared year, 2025: Caitlin #1028, Rhiannon #1407.

• Republic of Ireland · Girls23 shared years, 1985–2019

  Caitlin held the stronger position in 21 of those years, Rhiannon in 0.

  Highest recorded here: Caitlin #31 in 2003, Rhiannon #218 in 2002.

  The order changed in 1989: Caitlin moved ahead. In 1988 they stood at #488 and #488; by 1989 that had become #408 and #503.

  Most recent shared year, 2019: Caitlin #152, Rhiannon #871.

• Northern Ireland · Girls14 shared years, 1997–2010

  Caitlin held the stronger position in 14 of those years, Rhiannon in 0.

  Highest recorded here: Caitlin #2 in 2002, Rhiannon #77 in 2000.

  The order between them never changed and held in this list.

  Most recent shared year, 2010: Caitlin #28, Rhiannon #366.

• New South Wales, Australia · Girls12 shared years, 1987–1999

  Caitlin held the stronger position in 12 of those years, Rhiannon in 0.

  Highest recorded here: Caitlin #10 in 1998, Rhiannon #65 in 1994.

  The order between them never changed and held in this list.

  Most recent shared year, 1999: Caitlin #14, Rhiannon #92.

Two names moving past each other in a ranking is a fact about the ranking. Namewise does not claim one name displaced the other, that families chose between them, or that either influenced the other — none of that is in this data.

Where to go next

Comparisons that share a name, a rule or a published list with this one. Each is an existing comparison page with its own evidence — nothing here says these pairs are alike.

Side by side

How each name got here