Iolo

Iolo is a diminutive of Iorwerth, a Welsh name. It may refer to:


 * Iolo Goch (1320 – 1398), Welsh bard
 * Iolo Morganwg (1747 – 1826), Welsh poet, antiquarian, and literary forger
 * Iolo Ceredig Jones (born 1947), Welsh chess player
 * Iolo Williams (born 1962), Welsh television presenter
 * Iolo FitzOwen, character in the computer game series Ultima