Janke is a name of Germanic origin.
This name is popular in countries speaking Dutch or Afrikaans, such as The Netherlands and South Africa. As a first name, it is usually attributed to a woman in South Africa. (This being due to a TV series aired in the 1990s where one of the main female protagonists was named Janke). It may also appear as a male first name amongst other families with ties to Germanic background. Spelling variations include Jancke, Jankhe, and (rarely) Janckhe. The name is derived from the Dutch male name Jan (a form of John or Johan), and features the suffix "-ke", which makes it a pet name, almost meaning "Baby Jan".
People with the surname Janke include:
- Barbara Janke (born 1947), British teacher and politician
- Curt W. Janke (1892–1975), American politician
- Dennis Janke (born 1950), American comic book artist
- Dexter Janke (born 1992), Canadian football defensive back
- Fred Janke (1917–2009), American football player, business executive and politician
- Gabriele Janke (born 1956), German fencer
- Grant Janke (born 1990), South African rugby union player
- Janusz Janke (born 1966), Polish diplomat
- Karin Janke (born 1963), retired German sprinter
- Kleber Janke (born 1988), Brazilian footballer
- Terri Janke, Wuthathi/Meriam Indigenous lawyer
- Toni Janke, Australian soul singer