John Sheffield, 2nd Baron Sheffield

John Sheffield, 2nd Baron Sheffield, of Butterwick (c. 1538 – 10 December 1568) was the first son of Edmund Sheffield, 1st Baron Sheffield, and Lady Anne de Vere.

He married Douglas Howard, daughter of William Howard, 1st Baron Howard of Effingham, and Margaret Gamage. They had two children:
 * 1) Elizabeth Sheffield (died November, 1600) married Thomas Butler, 10th Earl of Ormonde
 * 2) Edmund Sheffield, 1st Earl of Mulgrave (7 December 1564 – 6 October 1646) married (1) Ursulla Tyrwhitt (2) Mariana Irwin