Breakneck is an English adjective meaning dangerous or reckless. It may refer to:
Breakneck Creek, a tributary of Connoquenessing Creek in western Pennsylvania Breakneck Hill, in Allegany County, Maryland Breakneck Ridge, a mountain along the Hudson River, New York Breakneck Ridge (Metro-North station), a station on the Metro-North Railroad in New York State Breakneck (video game) or N.I.C.E. 2, a 1998 video game Breakneck: China's Quest to Engineer the Future, a 2025 book by Dan Wang
See also "Break Ya Neck", a single by American rapper Busta Rhymes from his 2001 album Genesis