Ambika Kalna or simply Kalna is a town, a municipality and headquarters of Kalna subdivision in Bardhaman District in the Indian state of West Bengal. It is situated on the western bank of the Bhāgirathi. The town is more popularly known as Ambika Kalna, named after a very popular deity, Goddess Kali, Maa Ambika. It has numerous historical monuments such as the Rajbari (the palace) and the 108 Shiva temples.