NGC 1531 (also ESO 359-26, MCG -5-11-1 and PGC 14635) is a magnitude +12.9 peculiar lenticular galaxy located 54 million light-years away in the constellation Eridanus.
The galaxy was discovered by British astronomer John Herschel using a 47.5 cm (18.7 inch) f/13 speculum reflecting telescope at Feldhausen, Claremont, Cape Town on the 19th October 1835.