| Ottis Elmer Lock | |
| Office: | President pro tempore of the Texas Senate |
| Term Start: | January 8, 1957 |
| Term End: | May 23, 1957 |
| Predecessor: | Neveille Colson |
| Successor: | Carlos C. Ashley, Sr. |
| State Senate1: | Texas |
| District1: | 3rd |
| Term Start1: | January 11, 1949 |
| Term End1: | January 13, 1959 |
| Predecessor1: | Ben Ramsey |
| Successor1: | Martin Dies Jr. |
| State House2: | Texas |
| District2: | 12th |
| Term Start2: | July 23, 1938 |
| Term End2: | January 11, 1949 |
| Predecessor2: | Samuel Aubrey Jones |
| Succeeded2: | Raymond T.R. Tatum |
| Office3: | President of Lufkin School Board |
| Birth Name: | Ottis Elmer Lock |
| Birth Date: | 28 July 1910 |
| Birth Place: | Angelina County, Texas, U.S. |
| Restingplace: | Lufkin, Texas |
| Party: | Democratic |
| Spouse: | Viola Williamson |
| Children: | 3 |
| Residence: | Lufkin, Texas |
| Alma Mater: | Stephen F. Austin State University (BS) University of Texas |
| Battles: | World War II |
Ottis Elmer Lock (July 28, 1910 - August 15, 1998) was an American politician that served in the Texas House of Representatives for District 12, he also served in the Texas Senate for District 3, he was also President pro tempore of the Texas Senate.
Lock was born July 28, 1910, in Angelina County, Texas. He attended high school at Rusk Academy and attended Stephen F. Austin State University, where he graduated with a bachelor of science degree in history and education. He worked numerous jobs for Laneville Independent School District, during the summer time he would study law at the University of Texas and later passed the bar exam becoming an attorney. Lock enlisted in the United States Army to fight in World War II, he was a second lieutenant. He worked 15 years for Southland Paper Mills in Lufkin, Texas. He was married to Viola Williamson and they had three sons.[1] Lock died on August 15, 1998, and is buried in Lufkin, Texas.[2]
Lock served Texas House of Representatives District 12 during the 45th, 46th, 47th, 48th, 49th, and 50th Legislatures. He was known to be a strong advocate of public schools. Lock also served in the Texas Senate for District 3 during the 51st, 52nd, 53rd, 54th, and 55th legislatures. He was President pro tempore of the Texas Senate during part of the 55th legislature.[3] Lock also served as president of the Lufkin School Board.[1] Lock was affiliated with the Democratic Party.
Lock was involved in various civic work.