Y nomenclature (from the IAU and from unofficial sources)

Italics indicate farside features.

-Menzel, 1971- Yablochkov
-Sternberg- Ya. Bruce (Mariotte X)
-RP 1097- Yakovkin
-Menzel, 1971- Yamamoto
-LTO- Yangel', Fossa
Yangel', Rima
-Krieger- Yerkes
-rille seeker- Yerkes, Rimae (cluster of rilles west-northwest of Yerkes)
Yoshi (craterlet at Aratus CA, aka the LTO's Lorca)
-Schmidt- Young
Yuri, Catena (NW of Euler).
Yutu (Chinese name for one of the volcanic domes in the Marius Hills complex)