Sir Robert Slingsby, 1st Baronet (1611–1661) was an English baronet, author and Naval commander, and in his last years a much-loved colleague of Samuel Pepys. He was born at Bifrons near Canterbury, the second son of Sir Guylford Slingsby, Controller of the Navy, and Margaret Walter. He was the grandson of Sir Francis Slingsby of Scriven, near Knaresborough, and thus a first cousin of Sir Henry Slingsby, 1st Baronet, who was executed in 1658 for his part in a conspiracy to restore Charles II. Robert's eldest brother Guildford Slingsby was a promising young politician and lawyer who was killed early in the English Civil War.
