Samuel Ealy Johnson Jr. (October 11, 1877 – October 23, 1937) was an American businessman and politician. He was a Democratic member of the Texas House of Representatives representing the . He served in the , , , , and Texas Legislatures. He was the father of the 36th president of the United States, Lyndon B. Johnson, and the son of Samuel Ealy Johnson Sr. He was a struggling farmer and cattle speculator who lived in the Texas Hill Country.