Slaphappy Sleuths is a 1950 short subject directed by Jules White starring American slapstick comedy team The Three Stooges (Moe Howard, Larry Fine and Shemp Howard).

It is the 127th entry in the series released by Columbia Pictures starring the comedians, who appeared in 190 shorts for the studio between 1934 and 1959.

Despite their diligent efforts to provide exemplary customer service, offering unconventional amenities such as shaves, manicures, cologne, and popcorn, the Stooges fall victim to theft while momentarily distracted.

Following a trail of motor oil, they ultimately locate the hideout of the perpetrators, where they display unexpectedly proficient boxing prowess, surpassing their earlier detective endeavors.

The gag of a third Stooge acting like a bloodhound and tries to sniff out the tracks of enemies was also used in Goofs and Saddles (1937) and Phony Express (1943).