Main is a surname.
People with the name include:
Alan Main, Scottish football goalkeeper
Alexander H. Main. American politician
Anne Main, British politician
Bert Main, Australian zoologist
Charles T. Main, American engineer
Grant Main, Canadian rower
James Main, Scottish football player
John Main, British Benedictine monk
Marjorie Main, American actress
Michel Main, French traditionalist Catholic bishop
Robert Main, British astronomer
Sandy Main, Scottish football player
Terence Main (born 1954), American modernist sculptor
Willett Main, American politician