Pynchon may refer to:
- George M(allory). Pynchon(, Sr.) (1862, – ?), an American yacht racer
- Thomas (Ruggles) Pynchon(, Jr.) (born 1937), an American novelist
- Victoria ("Vickie") Pynchon (born 1952), an American lawyer, attorney mediator, author and writer
- William Pynchon (1590, – 1662), a colonial assistant treasurer and original patentee of the Massachusetts Bay Colony