Lightspeed may refer to:
Arts and literature Lightspeed (album), the 2010 album by Destine Lightspeed (film), a 2006 science fiction film Lightspeed (magazine), an online fantasy and science fiction magazine Lightspeed (Transformers), a fictional character Lightspeed (video game), a space simulation computer game released in 1990 Julie Power, a Marvel Comics superhero who goes by the name Lightspeed "Lightspeed", a song by Dev from her album The Night the Sun Came Up
Organizations Lightspeed (brokerage), a New York City based brokerage Lightspeed Systems, a company that sells content-control and security software and systems for schools Lightspeed Venture Partners, a venture capital firm Lightspeed Commerce, Canadian point-of-sale software provider
Other uses the speed of light, a physical constant.
LIGHT SPEED, the callsign of Executive Express Aviation Telesat Lightspeed, a low Earth orbit satellite constellation being built by Telesat