William Parsons - Also

Also

• Parsons Baronets
  • Sir William Parsons, 1st Baronet of Langley (c. 1636–c. 1662)
• Earl of Rosse
  • Sir William Parsons, 1st Baronet of Bellamont (died 1650), Surveyor General of Ireland and Member of Parliament
  • Sir William Parsons, 2nd Baronet of Bellamont (died 1658)
  • Sir William Parsons, 2nd Baronet of Birr Castle (died 1741)
  • Sir William Parsons, 4th Baronet of Birr Castle (1731–1791), Irish politician
  • William Parsons (musician) (c. 1746–1817), Master of the King's Music
  • William Parsons, 3rd Earl of Rosse (1800–1867), Lord Rosse, Irish astronomer
  • William Parsons, 5th Earl of Rosse (1873–1918), elected a Representative Peer in 1911
  • William Parsons, 7th Earl of Rosse (born 1936), worked for the United Nations