Joseph "Tex" Geddes (24 October 1919 – 11 April 1998) was a Scottish author, adventurer, and self-styled Laird of Soay best known for the memoir Hebridean Sharker (1960) about his adventures on sharking boats off the west coast of Scotland with Gavin Maxwell and others. Geddes was a central character in Maxwell's Harpoon at a Venture (1952), an account of their failed shark oil extraction venture on Soay and also featured in Ian Mitchell's Isles of the West (1999).