William Dewsbury (c. 1621–1688) was an English Quaker minister and religious writer in the early period of the movement.
In 1642, his brief experience in the Parliamentary Army led him to reject fighting with "carnall" weapons on religious grounds.
Dewsbury travelled to Edinburgh, having become interested in Presbyterianism, but was disappointed by the formality of the Scottish faith.
[3] The couple unsuccessfully attempted to regain in court some former property of Ann Dewsbury, which had been taken by her brother.
In 1651 Dewsbury met the prominent English Dissenter and early Quaker George Fox in the house of a Lieutenant Roper, near Balsby.