Isaac Wildrick (March 3, 1803 in Frelinghuysen Township, New Jersey – March 22, 1892 in Blairstown, New Jersey) was an American Democratic Party politician, who represented New Jersey's 3rd congressional district in the United States House of Representatives from 1849 to 1853.
Wildrick was born in Marksboro (in Frelinghuysen Township, New Jersey) on March 3, 1803.
He attended the common schools, and engaged in agricultural pursuits near Blairstown.
He was constable from 1827 to 1832, coroner from 1829 to 1831, Justice of the Peace from 1834 to 1839, judge in 1839, sheriff from 1839 to 1841 and director of the county poorhouse from 1842 to 1848.
He died in Blairstown on March 22, 1892, and was interred in the Presbyterian Cemetery in the Marksboro section of Frelinghuysen Township.