Sedgwick \s(e)-dgwi-ck, sed(g)-wick\ as a boy's name is of Old English origin, and the meaning of Sedgwick is "sword place". Place name possibly referring to a sharp, reedlike type of grass or to the actual weapon of a swordsman.

Sedgwick has 3 variant forms: Sedgewick, Sedgewyck and Sedgwyck.