Harder may refer to: __NOTOC__ People Harder (surname)
Places Harder, Washington, unincorporated community, United States Harder Fjord, Peary Land, Greenland Harder (mountain), Switzerland, with a viewpoint at the Harderkulm
Music "Harder", a 2002 song by Kosheen "Harder", a 2022 song by Chris Brown from Breezy "Harder" (Tiësto and Kshmr song), 2016 "Harder" (Jax Jones and Bebe Rexha song), 2019
Other uses Harder (fish), or South African mullet , two US Navy submarines Harder Stadium, University of California, Santa Barbara