Patteson Womersley Nickalls DSO (23 January 1877 – 10 September 1946), was an English polo player who competed in the 1908 Summer Olympics for Great Britain.

In 1900, he was gazetted to the Durham Light Infantry and served in the Second Anglo-Boer War.

He captained the English team against America in 1909 in the Westchester Cup with a handicap of +8.

[6][7] Nickalls served on the Western Front in World War I in the Northamptonshire Yeomanry.

[8] He remained a major in the Territorial Reserve, having been awarded the Distinguished Service Order in 1918, until 1926.