Sir Patteson Nickalls JP (10 December 1836^[1] – 4 October 1910) was a British stockbroker and Liberal politician and was president of the Polo and Riding Pony Society.

Nickalls was born in Chicago in 1836 as a British subject, the son of Patteson Nickalls (1798–1869) and Arabella Chalk (1799–1893). He was the younger brother of Tom Nickalls. He became a stockbroker in London.^[2] At the 1885 general election he stood unsuccessfully for parliament as a Liberal at Sevenoaks.^[3] He was knighted at Osborne House on 11 August 1893.^[4] At the 1900 general election he stood unsuccessfully for parliament as a Liberal at Dartford.^[5] In 1901, he addressed a pro-Boer meeting at Maidstone which was broken up by his opponents, and which caused unpopularity for Nickalls at the Stock Exchange.^[6]

Nickalls lived at Chislehurst and died in 1910 at the age of 73.^[7]

Nickalls married Florence Womersley (1847–1896) in London in 1867.^[7] They had five daughters and three sons:

• Ethel Patteson Nickalls (1867–1948)
• Winifred Nickalls, who married Major-General Charles Budworth (1869−1921)
• Hylda Patteson Nickalls (1871–1947)
• Lilian Patteson Nickalls (1873–1950), who married in 1902 Captain William Randal Ponsonby (1876–1919), and later Major Arthur Trevor-Boothe (1869–1946)
• Sybil Patteson Nickalls (1874–1938), who married Hon Henry Gilbert Lakin (1875–1964)
• Major Patteson Womersley Nickalls (1877–1946)
• Colonel Cecil Patteson Nickalls (1877–1925)
• Morres Nickalls

The sons were all leading polo players who were educated at Rugby School and New College, Oxford and played polo for Oxford University.^[8]