Leonid Petrovich Moiseyev (Russian: Леонид Петрович Моисеев) (born 1948 in Vladivostok) is a Russian diplomat. Educated at the Moscow Institute of International Relations, Moiseyev has been a member of first the Soviet and then the Russian diplomatic service since 1973. He has served mainly in the People's Republic of China (he is fluent in Chinese) and Japan. Moiseyev was the Ambassador of Russia to Australia from 20 July 2001 to 10 November 2005, and the ambassador to Singapore between 2011 and 2015.