James Locy Hallock (January 25, 1823 – September 21, 1894) was an American carpenter, farmer, and politician.
Born in Pittston, Pennsylvania, Hallock worked as a carpenter and for the railroad.
In 1855, Hallock and his wife settled in the town of Nelson, Buffalo County, Wisconsin.
In 1870, Hallock served in the Wisconsin State Assembly and was a Republican.
This article about a Republican Party member of the Wisconsin State Assembly born in the 1820s is a stub.