Bysse (Bisse), John (c.1602–1680), lawyer and judge, was the eldest son of Christopher Bysse of Dublin (d. 1614), second remembrancer of the exchequer, and his wife, Margaret (d. 1640), daughter of Alderman John Foster of Dublin. He attended TCD, entered Lincoln's Inn, London, in October 1624 and was admitted to King's Inns, Dublin, in November 1632. He became recorder of Dublin in 1634, a post he appears to have held until January 1661, when his successor was appointed. He was elected an MP for Charlemont in 1634 and acted as justice of assize in Munster in 1636. In 1640 he was elected an MP for Dublin city and has been regarded as one of the most active members of the Irish commons in 1640–41. He was appointed to the commission of the peace for Leinster in 1651, and under the Protectorate he was proposed for judicial office and acted as justice of assize in Ulster in 1655.
In 1656 he was elected MP for Dublin city in the protectorate parliament, defeating leading army officers John Jones and John Hewson, and took his seat at Westminster despite attempts to have him excluded, countered from Dublin by Henry Cromwell (qv). He sat on parliament's Irish committee and was recorded as a supporter of the moves to secure the crown to Oliver Cromwell (qv). Henry Cromwell again recommended him for the bench in 1659. In 1660 he represented Dublin city in the Irish Convention, and at the restoration he was appointed chief baron of the exchequer, by patent dated 9 July 1660. With the support of the duke of Ormond (qv) he retained this position for the remainder of his life, also serving as justice of assize for Leinster. He was sworn of the privy council of Ireland on 1 January 1661 and served on a series of commissions, on the land settlement in the 1660s and on the Irish royal revenue in the 1670s. Bysse possessed property in north Co. Dublin and in King's County, and resided at Preston's Inn in Dublin city. He married Margaret, daughter of Francis Edgeworth, clerk of the crown in chancery, and widow of John King, clerk of the hanaper. They appear to have had several children but only one daughter survived her father. Bysse died 28 January 1680, and was buried in Dublin.