Sir William Peter Rylands, 1st Baronet (23 October 1868 – 22 October 1948) was a British businessman.
Rylands was head of Rylands Brothers and served as High Sheriff of Cheshire in 1935.
He was created a baronet, of Thelwall in the County Palatine of Chester, in 1939.
He died in October 1948, one day before his eightieth birthday.