Wilhelm Leopold Janssen

Wilhelm Leopold Janssen is the name of the following people:

• Wilhelm Leopold Janssen (politician, 1830) (1830–1900), German administrative officer, District Administrator in the Heinsberg district
• Wilhelm Leopold Janssen (diplomat) (1859–1915), German cloth manufacturer and diplomat
• Wilhelm Leopold Janssen (politician, 1891) (1891–1945), German administrative officer, Landrat Landkreis Aachen

This is a disambiguation page for differentiating between several terms identified with the same word.