Muchukunda (Sanskrit: मुचुकुन्द, romanized: Mucukunda) is a king of the Suryavamsha (Solar dynasty) in Hindu mythology.

Struck with grief upon learning that his family was no longer alive, and feeling exhausted after all the battles, he asked the devas for the boon of undisturbed sleep, with the provision that anyone who dared to disturb it would immediately be reduced to ashes.

[3]According to the Mahabharata, Kalayavana, a great yavana warrior king, was undefeated and unmatched in battle due to a boon.

Krishna advised him to perform tapas to cleanse his accumulated sins, to attain moksha (liberation).

The story narrates that he was astonished to see all creatures had shrunken in size over time while he rested in the cave, indicating long ages gone by.