Erik Jean-Louis Worm (Danish pronunciation: [?r?k ???n??lwi w??m] (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 doubles runner-up for the Monaco tournament (now known as the Monte-Carlo Masters).