| Delos R. Johnson | |
| Office: | 30th Lieutenant Governor of Louisiana |
| Term Start: | 12 April 1924 |
| Term End: | 13 May 1924 |
| Governor: | John M. Parker |
| Predecessor: | Hewitt Bouanchaud |
| Successor: | Oramel H. Simpson |
| Office1: | Member of the Louisiana House of Representatives for Washington Parish |
| Term Start1: | 1908 |
| Term End1: | 1916 |
| Office2: | Member of the Louisiana State Senate for the 22nd District |
| Term Start2: | 1916 |
| Term End2: | 1932 |
| Birth Date: | 19 April 1879 |
| Birth Place: | Washington Parish, Louisiana, U.S. |
| Death Place: | Franklinton, Louisiana, U.S. |
| Party: | Democrat |
| Children: | 1 |
| Education: | Tulane Law School |
Delos Rozelus Johnson (19 April 1879 – 1 December 1955) was an American politician who served in the Louisiana House of Representatives and Louisiana State Senate as a member of the Democratic party. He also briefly served as the 30th Lieutenant Governor of Louisiana in 1924.
Delos R. Johnson was born on a plantation in Washington Parish, Louisiana, on 19 April 1879 to Andrew Jackson Johnson and Caroline Thomas. He graduated from the Louisiana State Normal College in 1901 and the Tulane Law School in 1906, going on to practice law in Franklinton until 1908. He married Pearl Griffith on 18 March 1913 and had a son.
Delos R. Johnson was first elected to the Louisiana House of Representatives for Washington Parish unopposed in 1908. He was re-elected in 1912, thereby continuing to serve as a representative until 1916. After his service in the Louisiana House of Representatives, he was elected to the Louisiana State Senate for the 22nd district in 1916. He was re-elected to the State Senate in 1920, and it was during his second term that he became President Pro Tempore of the Senate. Upon his re-election in 1924, Johnson served as the President of the Louisiana State Senate until the resignation of Lieutenant Governor Hewitt Bouanchaud on 12 April 1924. Johnson was sworn in as the acting Lieutenant Governor of Louisiana that same day and held the position until his elected successor took office on 13 May 1924. After his brief service as Lieutenant Governor, Johnson returned to his position as State Senator. He was re-elected to the State Senate for a final time in 1928, serving until 1932. During both his service in the House of representatives as well as in the Senate, Johnson served as chairman of the education committee.[1]
Delos R. Johnson retired from politics upon his term's end in the State Senate in 1932, after which he continued practicing law. He died in Franklinton, Louisiana, on 1 December 1955 and was buried at Ellis Cemetery.[2]