Moses Norris Jr. (November 8, 1799 – January 11, 1855) was a United States representative and Senator from New Hampshire.

He studied law, was admitted to the bar in 1832 and commenced practice in Barnstead.

He was again a member of the State house of representatives in 1847–1848, and served as speaker.

He was then elected to the U.S. Senate and served from March 4, 1849, until his death.

He died in Washington, D.C., in 1855; interment was in Floral Park Cemetery, Pittsfield.