A bandha (Sanskrit: बंध) is a kriyā in Hatha Yoga, being a kind of internal mudra described as a "body lock". Bandha literally means bond, fetter, or "catching hold of".

Mūla bandha is a primary bandha in traditional yoga. The earliest textual mention of mūla bandha is in the 12th century Shaiva Natha text Gorakṣaśataka which defines it as a yogic technique to achieve mastery of breath and to awaken the goddess Kuṇḍalinī.

Mula Bandha (Sanskrit: मूल बंध) is from Mūla, meaning variously root, base, beginning, foundation, origin or cause.