Kolosovka () is the name of several rural localities in Russia:
Kolosovka, Kaliningrad Oblast, a settlement in Pereslavsky Rural Okrug of Zelenogradsky District of Kaliningrad Oblast
Kolosovka, Kursk Oblast, a village in Starkovsky Selsoviet of Oktyabrsky District of Kursk Oblast
Kolosovka, Izmalkovsky District, Lipetsk Oblast, a village in Lebyazhensky Selsoviet of Izmalkovsky District of Lipetsk Oblast
Kolosovka, Yeletsky District, Lipetsk Oblast, a village in Kolosovsky Selsoviet of Yeletsky District of Lipetsk Oblast
Kolosovka, Omsk Oblast, a selo in Kolosovsky Rural Okrug of Kolosovsky District of Omsk Oblast
Kolosovka, Pskov Oblast, a village in Pechorsky District of Pskov Oblast
Kolosovka, Smolensk Oblast, a village in Barsukovskoye Rural Settlement of Monastyrshchinsky District of Smolensk Oblast
Kolosovka, Republic of Tatarstan, a village in Yelabuzhsky District of the Republic of Tatarstan