Making Christ’s Bed, [73].

Mari Lwyd, [61], [82].

Mathavarn, [332].

Mathry, [235].

Maelienydd, [289].

Meirionydd, [3], [34].

Mermaids, [143]–147.

Mab Llech y Derwydd, [112].

Mabinogion, [33], [118], [225].

Maenclochog, [328].