Trevor Truran (born 1942) is a British game designer, a former mathematics teacher, and a former Royal Navy sailor. He is probably best known as the creator of games and puzzles to be used as mathematical teaching aids. At one time his mathematics class was based solely on games, puzzles, and story situations. His early games were published in Games & Puzzles Magazine where he became the puzzle editor for the magazine. He has created and edited many magazines including Media's Hanjie and ones involving Sudoku, wordsearch, and mathematical games, but he has largely concentrated on logical puzzles. He created the logical puzzle now known as the Mosaic and is sometimes credited with inventing a specific type of puzzle that uses cross-referencing. A meeting with Discworld artist Bernard Pearson led to him creating the game Thud.