The 5th World Science Fiction Convention (Worldcon), also known as Philcon I, was held on 30 August–1 September 1947 at the Penn-Sheraton Hotel in Philadelphia, Pennsylvania, United States.

The chairman was Milton Rothman.

Participants

Attendance was approximately 200.

Guests of honor

See also

Preceded by4th World Science Fiction Convention Pacificon I in Los Angeles, California, United States (1946)List of Worldcons 5th World Science Fiction Convention Philcon I in Philadelphia, Pennsylvania, United States (1947)Succeeded by6th World Science Fiction Convention Torcon I in Toronto, Ontario, Canada (1948)