| John VI, Lord of Werle | |
| Noble Family: | House of Mecklenburg |
| Father: | Bernard II of Werle |
| Mother: | Elizabeth of Holstein-Plön |
| Spouse: | Agnes of Werle |
| Birth Date: | after 1341 |
| Death Date: | between 1385 and 1395 |
John VI, Lord of Werle-Waren-Goldberg (born: after 1341; died: after 16 October 1385) was Lord of Werle-Goldberg from 1382 to 1385.
He was the son of Bernard II of Werle and Elizabeth, daughter of John III, Count of Holstein-Plön.
He reigned only along with his father and after his father's death in 1382 alone, over the Lordships of Werle-Goldberg and Werle-Waren. He was married with Agnes, daughter of Nicholas IV of Werle-Goldberg. It is not known when he died. In a document dated 16 October 1395, he is mentioned as being alive. He is known to have died before 1395.