Apgar is the surname of:
- Charles E. Apgar (1865–1950), American amateur radio operator
- James K. Apgar (1862–1940), American politician
- Jean Apgar (born 1936), American biochemist
- Kristina Apgar (born 1985), American television actress
- Mahlon Apgar IV (born 1941), American expert on housing, infrastructure, and real estate
- Virginia Apgar (1909–1974), American physician, developer of the Apgar score
- William C. Apgar, American economist