Y
- (Sumskyi Raion) Yaseny
- (Shostkyns’ka Mis’krada) Yasna Poliana
- (Sumskyi Raion) Yasnopillia
- (Shostkyns’ka Mis’krada) Yelizavelovka
- (Sumskyi Raion) Yenatskiy
- (Sumskyi Raion) Yelyseienkove
- (Okhtyrskiy Rayon) Yvakhy
- (Romenskyi Raion) Yakymenky
- (Romenskyi Raion) Yarove
- (Sumskyi Raion) Yosypove
- (Konotops’ka Mis’krada) Yarove
- (Sumskyi Raion) Yablunivka
- (Romenskyi Raion) Yukhty
- (Romenskyi Raion) Yakovenkove
- (Romenskyi Raion) Yalovyi Okip
- (Romenskyi Raion) Yahanivka
- (Romenskyi Raion) Yasnopilshchyna
- (Romenskyi Raion) Yakymovychi
- (Sumskyi Raion) Yaroshi
- (Sumskyi Raion) Yusupivka
- (Sumskyi Raion) Yastrubyne
- (Konotops’ka Mis’krada) Yurieve
- (Konotops’ka Mis’krada) Yurivka
- (Shostkyns’ka Mis’krada) Yurasovka
- (Sumskyi Raion) Yunakivka
- (Okhtyrskiy Rayon) Yizdetske
- (Romenskyi Raion) Yarmolyntsi
- (Shostkyns’ka Mis’krada) Yemadykyne
- (Konotops’ka Mis’krada) Yatsyne
- (Shostkyns’ka Mis’krada) Yastrubshchyna