Sons of Alpha Centauri (sometimes abbreviated to SOAC) is an English instrumental rock band based in Swale, Kent. Founded in 2001 by Nick Hannon and Marlon King, the band has developed and borrowed from a range of styles from the 1970s through to the 1990s including stoner rock, desert rock, post-metal and the New wave of British heavy metal, as well as British artists as Black Sabbath and Pink Floyd.

Sons of Alpha Centauri are mostly noted for their ongoing collaborations and aversion to public performances, having performed under 20 gigs since their formation in 2001, of which six have been at the Camden Underworld in London. Their eponymously titled debut studio album Sons of Alpha Centauri was released in 2007, with common themes for the band including outer space, World War III and environmental preservation.