Erik Jean-Louis Worm (April 26, 1900 – October 17, 1962) or simply Louis was a Danish tennis player.
He was a three-time Danish national singles and mixed doubles champion (1922, 1923, 1924) and a two times doubles champion (1922, 1925) Apart from being a Danish champion he was the Austrian champion as well.
In club level competitions he represented the Boldklubben af 1893.
He was a runner-up for the Monaco tournament (now known as the Monte-Carlo Masters) in both singles and doubles.