Lawrence T. Harris (September 13, 1873 – January 21, 1960) was an American politician and lawyer in the state of Oregon. He was the 45th Associate Justice of the Oregon Supreme Court, serving from 1914 to 1924. An a native Oregonian, he also served as a state court judge and in 1903 was the Speaker of the Oregon House of Representatives. After leaving the state's highest court he returned to private practice in Eugene, Oregon.