Beaver is a surname. Notable people with the surname include:
Diane E. Beaver, American lawyer and United States Army officer
Isidor George Beaver (1859–1934), Australian architect
James A. Beaver (1837–1914), Pennsylvania governor
Jim Beaver (born 1950), American actor
Justin Beaver (born 1984), American football player
Martin Beaver (born 1967), Canadian violinist
Mike Beaver (born 1973), Canadian comedian and writer
R. Perry Beaver, American Muscogee leader
Roger A. Beaver, biologist who studied Nepenthes pitcher plants
Ryan Beaver (born 1984), American singer-songwriter
Stan Beaver, American singer
William H. Beaver (born 1940), American academic
