Surnames Yasuoka – Yauri
- Yasuoka (2)
- Yat (13)
- Yat-Joj (1)
- Yat-Osorio (1)
- Yata (2)
- Yatarola (1)
- Yatch (1)
- Yatchak (1)
- Yatckoske (1)
- Yate (2)
- Yatees (1)
- Yateman (1)
- Yatender (1)
- Yater (13)
- Yates (2,476)
- Yates-Adams (1)
- Yates-Barrett (1)
- Yath (1)
- Yathapu (1)
- Yatim (3)
- Yatko (2)
- Yator (1)
- Yatrib (1)
- Yatrousis (1)
- Yats (1)
- Yatskievych (1)
- Yatsko (3)
- Yatsu (2)
- Yatt (1)
- Yattara (1)
- Yattaw (2)
- Yatto (2)
- Yatzak (1)
- Yau (43)
- Yau-Saucedo (1)
- Yauch (15)
- Yauck (9)
- Yaudas (2)
- Yaudes (3)
- Yauger (23)
- Yaugr (1)
- Yauhari-Souki (1)
- Yauhari-Souky (1)
- Yauilla (1)
- Yauk (2)
- Yaukeleoch (1)
- Yauman (1)
- Yaummarath (1)
- Yaun (18)
- Yaunches (1)
- Yaung (1)
- Yaunk (2)
- Yaunke (1)
- Yauri (2)