Tom Riddle can refer to:
- Thomas Riddle, father of Tom Riddle Snr and grandfather of Tom Marvolo Riddle.
- Tom Riddle Snr, son of Thomas Riddle and father of Tom Marvolo Riddle.
- Tom Marvolo Riddle, son of Tom Riddle Snr. and grandson of Thomas Riddle, he would later become known as Lord Voldemort.