Venice Island is an island in the Sacramento-San Joaquin River Delta in San Joaquin County, California, fifteen kilometres northwest of Stockton.
The 1,250 ha (3,100-acre) island is bounded on the north- and northeast by Potato Slough, on the southeast by Little Connection Slough, on the south by the Stockton Deepwater Channel Venice Cut, and on the west, the San Joaquin River.