The seal of the province shows a pond in front of the Phu Phan Mountains which form the boundary of the province. The water in the pond is black, as the name Kalasin means "black water". The big clouds as well as the water symbolize the fertility of the province.
The provincial logo and landmark is the Phra That Yakhu, an octagonal-shaped chedi, made of bricks.
The provincial flower is Payorm or Sweet shorea (Shorea roxburghii), and the provincial tree is Sa-mae-san (Cassia garrettiana).
The provincial slogan is Fa Daet Song Yang Ancient City, Pong Lang Folk Music, Phu Thai Culture, Phrae Wa Silk, Pha Saweoi Phu Phan, Lam Pao River, and Million-year Dinosaurs.