Joaquin Arambula is an American politician currently serving in the California State Assembly. He is a Democrat representing the 31st Assembly District, which encompasses southern and western Fresno County, including the cities of Sanger, Reedley, Orange Cove, and the west side of Fresno.

The California State Assembly is the lower house of the California State Legislature, the upper house being the California State Senate. The Assembly convenes, along with the State Senate, at the California State Capitol in Sacramento.