Cancelled Russian space probes

Mercury-P () is a mission concept for an orbiter and lander by the Russian Federal Space Agency to study the planet Mercury. The letter P in Mercury-P stands for the Russian word 'posadka', meaning landing.

Laplace-P (, formerly called Europa Lander) was a proposed orbiter and lander by the Russian Federal Space Agency designed to study the Jovian moon system and explore Ganymede with a lander.

The 'ExoMars Kazachok (; formerly ExoMars 2020 Surface Platform') was a planned robotic Mars lander led by Roscosmos, part of the ExoMars 2022 joint mission with the European Space Agency. Kazachok translates as "Little Cossack", and is also the name of an East Slavic folk dance.