Peter Nelson
Peter Nelson may refer to:
- Peter Nelson (actor), American actor
- Peter Nelson (b. 1852), Danish-born American politician
- Peter Nelson (b. 1861), Norwegian-born American politician
- Peter Nelson (cyclist), Australian cyclist
- Peter Nelson (researcher), American professor and artificial intelligence researcher
- Peter Nelson, 9th Earl Nelson, British peer
- Peter Nelson Mwanza, Malawian politician
- Peter Nelson (rugby union), Northern Irish rugby player
- Peter C. Nelson, American politician
- Peter Nelson (cricketer, born 1918), English cricketer
- Peter Nelson (cricketer, born 1913), English cricketer and British Army officer