EP3
EP3 may refer to:

EP3 (Basement Jaxx EP)
EP3 (Kleptones EP)
EP3 (Pixies EP)
EP3 (Ringo Starr EP)
EP03, a Swedish electric locomotive used by the Polish railway operator PKP
Lockheed EP-3, an electronic surveillance turboprop aircraft
Milwaukee Road class EP-3, a U.S. electric locomotive used by the railway operator Milwaukee Road 1919-1957
Procyclin EP3, a trypanosome procyclin protein
Prostaglandin receptor EP3
The chassis code for the 2001-2005 Civic Si and Type R

See also
Episode III (disambiguation)
III (Orbital EP)