English edit

Etymology edit

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

Proper noun edit

Riordan (plural Riordans)

  1. A surname.

Statistics edit

  • According to the 2010 United States Census, Riordan is the 4515th most common surname in the United States, belonging to 7848 individuals. Riordan is most common among White (94.78%) individuals.

Anagrams edit