A vortex is a dynamic phenomenon of fluids.
Vortex could also mean:
In amusement:
- Vortex (California's Great America), a stand-up roller coaster at California's Great America in Santa Clara, California, United States
- Vortex (Canada's Wonderland), a suspended roller coaster at Canada's Wonderland in Vaughan, Ontario, Canada
- Vortex (Carowinds), a stand-up roller coaster at Carowinds in Charlotte, North Carolina, United States
- Vortex (Kings Island), a steel roller coaster at Kings Island in Mason, Ohio, United States
In fiction:
- Cindy Vortex, a fictional character on the TV series The Adventures of Jimmy Neutron: Boy Genius and movie Jimmy Neutron: Boy Genius
- Time vortex (Doctor Who), the space-time vortex in the Doctor Who television series
- Vortex (novel), a 1991 war novel by Larry Bond and Patrick Larkin
- Vortex (Transformers), a member of the Combaticons from Transformers who transforms into a helicopter
- Vortex life form, a fictional extraterrestrial species of the Ecco the Dolphin video game series
In gaming:
- Vortex (game), several games
- Vortex Software, a defunct video game developer
In music:
- ICS Vortex, a Norwegian metal singer and bassist
- Vortex (album), a remix album by Collide
- Vortex I: A Biodegradable Festival of Life, a state sponsored music festival held in 1970 in Estacada, Oregon
- Vortex Jazz Club, a London venue that primarily features live jazz music but will occasionally have intriguing programmes of other music
In science and technology:
- Aureal Vortex, the PC audio accelerator chipset which powered such sound cards as the Monster Sound MX300
- Vortex (satellite), a class of United States Reconnaissance satellites
- Caltex Vortex, a brand of 95 and 98 octane unleaded fuels from Caltex
- Vorticity, a mathematical concept used in fluid dynamics
In television:
- Vortex (DS9 episode), a first-season episode of Star Trek: Deep Space Nine
- Vortex (Smallville episode), the first episode in Season 2 of Smallville
- Vortex (YTV), a programming block produced by YTV and hosted by Paula Lemyre
In other fields:
- Subaru Vortex, a sporty coupe sold from 1985 to 1991 by Subaru
