So Big is a 1932 pre-Code American drama film directed by William A. Wellman and starring Barbara Stanwyck. The screenplay by J. Grubb Alexander and Robert Lord is based on the 1924 Pulitzer Prize-winning novel of the same name, by Edna Ferber.

So Big was the second full-scale screen adaptation of the Ferber novel. The first was a 1924 silent film of the same name directed by Charles Brabin and starring Colleen Moore. A 1953 remake was directed by Robert Wise and starred Jane Wyman. The story was also made as a short in 1930, with Helen Jerome Eddy, Jody K. Lance.