William Nicoll Jr. (1702 – 1768) was an English-American colonial merchant and politician who served as the Speaker of the New York General Assembly.
His paternal aunt, Margaret Nicoll, was married to Col. Richard Floyd Jr., the colonel of provincial troops of Suffolk County and judge of the Court of Common Pleas and grandfather of William Floyd.
[5] His father was granted a royal patent of 50,000 acres on the Long Island by Governor Thomas Dongan in November 1683, later receiving further land grants making Plandome Manor the largest on Long Island totaling 100 square miles (260 km2).
[6] Nicoll was elected a member of the New York General Assembly, representing Suffolk County, in 1739 and, like his father, served until his death in 1768.
[8] During his service as Speaker, the 18th Assembly was dissolved for a short period of time upon the death of George II which occurred on October 25, 1760.