Howler may refer to:
- Howler (band), a band from Minneapolis, Minnesota
- The Howler, a roller coaster at Holiday World in Santa Claus, Indiana
- Howler (Animorphs), a fictional alien species from the Animorphs setting
- Howler, a type of magic object from the Harry Potter series
- Howler (mascot), the mascot of the Phoenix Coyotes
- Howler, a kind of mathematical fallacy that produces a correct result in spite of incorrect logic
- Howlers, fictional creatures from the PlayStation 3 game Resistance: Fall of Man
- Howler, original name of Velociraptor Screech from The Land Before Time TV series
- Hewlêr, the Kurdish name for the city of Arbil, Iraq
- Howler monkey, among the largest of the New World monkeys
- Howler tone, another name for off-hook tone, a tone alerting subscribers to the receiver having been left off the hook
- Howlers, strong omnivorous creatures which is mutated from cat family in Metro 2033