Nightcap often refers to:
Nightcap (garment), a soft cloth cap worn in bed Nightcap (drink), a drink (often alcoholic) consumed before going to bed
Nightcap may also refer to:
Places Nightcap National Park, New South Wales, Australia Nightcap Range Important Bird Area, New South Wales, Australia Nightcaps, New Zealand, a small town on the South Island of New Zealand
Film, radio, TV, and podcasts The NightCap, Australian late-night TV show airing online and on Channel 7 HD from February 2008 Nightcap (1953 TV series), a 1953–1954 Canadian music variety television series Nightcap (1963 TV series), a 1963–1967 Canadian comedy and variety television series Herb Jepko Nitecap Show, late night radio call-in show aired from 1964 to 1978 Nightcap (2016 TV series), a 2016–2017 American comedy television series Nightcap (podcast), an American podcast hosted by Shannon Sharpe, Chad Johnson, and Gilbert Arenas
Fictional characters Nightcap, a character appearing in the Plants vs. Zombies franchise
Music Nightcaps (Seattle band), American lounge music band active 1994–present The Nightcaps (Texas band), 1958-2009 Nightcap: The Unreleased Masters 1973–1991, a 1993 double-disk album by Jethro Tull
Sport Nightcap (baseball), night game of a baseball doubleheader