Dreadnaught may refer to:Dreadnaught (band), a heavy metal band in Melbourne, Australia
Dreadnaught (film), a 1981 film by Yuen Woo-Ping
Dreadnaught USA, an experimental rock band based in New Hampshire, US
USS Dreadnaught (YT-34), a tug in commission from 1918 to 1922 and in non-commissioned service from 1922 to 1944
Dreadnaught wheel, a wheel with articulated rails attached at the rim to provide a firm footing
Dreadnought, a large acoustic guitar
Beyond the Frontier: Dreadnaught, a novel by Jack Campbell
"Dreadnaught", a song by Machinae Supremacy from Deus Ex Machinae
Dreadnought, an episode of Star Trek: Voyager