James Houston Thomas (September 22, 1808 – August 4, 1876) was an American politician and a member of the United States House of Representatives for Tennessee's 6th congressional district.
Thomas was born in Iredell County, North Carolina on September 22, 1808.
He attended the rural schools and graduated from Jackson College, Columbia, Tennessee in 1830.
He studied law, was admitted to the bar in 1831, and commenced practice in Columbia, Tennessee.
Thomas died in Fayetteville, Tennessee in Lincoln County on August 4, 1876 (age 67 years, 317 days).