NGC 3389 (also NGC 3373, UGC 5914, MCG 2-28-13 and PGC 32306) is a magnitude +11.8 spiral galaxy located 60 million light-years away in the constellation Leo.
The galaxy was discovered by German-British astronomer William Herschel using a 47.5 cm (18.7 inch) f/13 speculum reflector at Datchet, Berkshire, on the 11th March 1784. The galaxy was rediscovered by John Herschel ln March 1830 and relisted as NGC 3373.