Shaddock may refer to:

Pomelo, fruit Citrus maxima NATO codenames for Soviet missiles: P-5 Pyatyorka (SS-N-3 Shaddock) SPU-35V Redut (SSC-1B Shaddock)

People Bob Shaddock (1920–1991), American professional basketball player

See also Les Shadoks animated television series from France Shad, fish subfamily Alosinae