Marsh was elected to the seat in a special election last year following the resignation of State Rep. Curt Cobb. Marsh serves on the House Commerce Committee and the House Transporation Committee.
Marsh is an owner of Big G Express, a Shelbyville-based trucking company. He and his wife Mary live in Shelbyville.
"My family and I are very grateful for the tremendous outpouring of support and encouragement during this process. We are humbled by the overwhelmingly positive comments sent our way," he said in a news release.
"I am incredibly fulfilled serving the people of the 62nd District in the Tennessee General Assembly. This has been the greatest opportunity ever afforded to me, but there is still much work to be done to make Bedford, Lincoln, and Rutherford Counties the best possible community in the state of Tennessee.
"I have had the opportunity already to work on issues of importance to my district, and I have thoroughly enjoyed getting to know countless constituents throughout the process. I appreciate the support and look forward to running for re-election later this year."
"We appreciate Pat Marsh's hard work for the citizens of the 62nd District. I certainly look forward to his continued great service in the House," said Rep. Glen Casada, House Republican Caucus Chairman, in a news release. "He is a man of great integrity, and the folks of the 62nd District have solid and fair representation in Pat Marsh."
The district includes Bedford and parts of Lincoln and Rutherford counties.