| Koy - Krasnoyarsk Krai (Krasnoyarsk Kray) |
Koygushi - Leningrad Oblast’ (Leningradskaya Oblast’) |
Koysyuryulgen - Kabardino-Balkaria |
| Koy - Tver’ Oblast’ |
Koygushskiy - Leningrad Oblast’ (Leningradskaya Oblast’) |
Koyt - Krasnodar Krai (Krasnodar Kray) |
| Koyagino - Leningrad Oblast’ (Leningradskaya Oblast’) |
Koykary - Karelia |
Koyta - Komi |
| Koyalova - Tver’ Oblast’ |
Koykinitsy - Karelia |
Koytonselkya - Karelia |
| Koyanai - Sakhalin Oblast’ |
Koykkaryate - Karelia |
Koyukov - Rostov Oblast’ |
| Koyani - Dagestan |
Koykory - Karelia |
Koyukovka - Rostov Oblast’ |
| Koyankova - Sverdlovsk |
Koykrylgan - Novosibirsk Oblast’ |
Koyukovy - Khanty-Mansi |
| Koyanova - Bashkortostan |
Koylyukyo - Yakutia (Sakha) |
Koyv-Ozero - Karelia |
| Koyanovo - Bashkortostan |
Koylyukyu - Yakutia (Sakha) |
Koyva - Perm Oblast’ |
| Koyanovo - Perm Oblast’ |
Koyma - Khabarovsk Krai (Khabarovsk Kray) |
Koyvayarvi - Karelia |
| Koyasha - Mordovia (Mordvinia) |
Koymarskiy - Buryatia |
Koyvisto - Leningrad Oblast’ (Leningradskaya Oblast’) |
| Koyatina - Pskov Oblast’ |
Koynas - Arkhangelsk Oblast’ |
Koyvu-Selda - Karelia |
| Koyatino - Pskov Oblast’ |
Koynass - Arkhangelsk Oblast’ |
Koyvuselga - Karelia |
| Koychala - Leningrad Oblast’ (Leningradskaya Oblast’) |
Koynergirgin - Chukotka (Chukot [Chukchi]) |
Koyvuselka - Karelia |
| Koyda - Arkhangelsk Oblast’ |
Koynergyrgyn - Chukotka (Chukot [Chukchi]) |
Koyvusilta - Karelia |
| Koydan - Karachay-Cherkessia |
Koyroy-Lambi - Karelia |
Koyvuvara - Karelia |
| Koydozero - Arkhangelsk Oblast’ |
Koyschenewo - Novosibirsk Oblast’ |
Koyvuyarvi - Karelia |
| Koyelga - Chelyabinsk Oblast’ |
Koysug - Rostov Oblast’ |
| Koygorodok - Komi |
Koysun - Dagestan |