Mutasiva was ruler of the Kingdom of Anuradhapura in Sri Lanka, based at the ancient capital of Anuradhapura. He ruled from 367 BC to 307 BC. He had nine sons, some of whom were his successors such Devanampiya Tissa, Uttiya, Mahasiva and Asela. Mutasiva was the son of King Pandukabhaya.
The king ruled for sixty years which was an unbroken peaceful era of the country. He was the creator of Mahamevnāwa Park in Anuradhapura which is the only historical record of his accomplishments.