Johanson is a Germanic patronymic surname meaning "son of Johan". It is uncommon as a given name.
- Arvid Johanson (b. 1929), Norwegian politician
- Donald Johanson (b. 1943), American paleoanthropologist
- Sue Johanson (b. 1930), Canadian writer, public speaker, registered nurse, sex educator
- Reg Johanson (b. 1968), Canadian composition and literature instructor, poet and essayist
- Jai Johanny Johanson (b. 1944), American musician
- Bryan Johanson (b. 1951), American musician and composer
- Anton Johanson (1877 - 1952), Swedish footballer
- Chris Johanson (b. 1968), American artist
- MaryAnn Johanson (b. ?), American film critic, author
- John Peter Johanson, American Medal of Honor recipient
- Herbert Johanson (1884 - 1964), Estonian architect
- Jay-Jay Johanson (b. 1969), Swedish musician, singer, songwriter