Mangkala Ubon is a species of water lily, with the botanical name Nymphaea mangkala ubol and commonly as the Mangala-ubol Water Lily. This free-blooming hardy water lily originates from Thailand and blooms all year round. It is a hybrid of the Maxicana and the Parries Five O.

It is a medium-large variety of the Yellow Hardy Water Lily and the flower has dense layers of petals. It has yellow-to-peach flowers, with the ends of the petals being orangey.