Newcomer may also refer to:
- Newcomer (Lenape), chief of the western Lenape and founder of Newcomerstown, Ohio
- Newcomer (Alien Nation), a fictional humanoid species in the television series and film Alien Nation
- The Newcomers (TV series), British soap opera based on a family that moved home from London to a country town
- Carrie Newcomer, American singer and songwriter
- Christian Newcomer (1749-1830), American farmer and preacher
- Francis K. Newcomer (1889-1967), Governor of the Panama Canal Zone
- Scott Newcomer, American politician
- the Novichok agent, Novichok meaning 'Newcomer' in Russian