Choor Singh, Indian-Singaporean lawyer and judge (d. 2009)
Choor Singh Sidhu (19 January 1911 – 31 March 2009), known professionally as Choor Singh, was a judge of the Supreme Court of Singapore and, particularly after his retirement from the bench, a philanthropist and writer of books about Sikhism. Born to a family of modest means in Punjab, India, he came to Singapore at four years of age. He completed his secondary education in the top class at Raffles Institution in 1929, then worked as a clerk in a law firm before becoming a civil servant in the Official Assignee's office.

Encouraged by the Assistant Official Assignee, James Walter Davy Ambrose (who was later appointed a High Court Judge), to study law, Choor Singh enrolled as an external student at the University of London, passing the matriculation examination and intermediate LL.B. examination. In 1948 he was appointed a coroner, and the following year was elevated to the post of magistrate, becoming the first Indian to hold such a position in colonial Malaya. Following law studies at Gray's Inn on a government scholarship, he became a Barrister-at-Law in 1955. He was appointed a district judge in 1960 and a judge of the Supreme Court in 1963. Especially noted for his criminal judgments, Singh was the first Singapore judge to impose the death penalty on a woman.

Following his retirement in 1980, Choor Singh continued his close involvement in Indian and Sikh affairs. One of the young Sikhs who founded the Singapore Khalsa Association in 1931, he served as its patron and honorary chairman of its board of trustees. He also contributed to educational charities and causes, both Sikh and non-Sikh, and wrote several books on Sikhism. In 1994, the Sikh community bestowed on him its highest honour by inviting him to lay the foundation stone for the new Gurdwara Sahib building at the Gurdwara Khalsa Dharmak Sabha at 18 Niven Road.