Cyril Bradley Rootham /ˈruːtəm/ (5 October 1875 – 18 March 1938) was an English composer, educator and organist. His work at Cambridge University made him an influential figure in English music life. A Fellow of St John's College, where he was also organist, Rootham ran the Cambridge University Musical Society, whose innovative concert programming helped form English musical tastes of the time. One of his students was the younger composer Arthur Bliss, who valued his tuition in orchestration. Rootham's own compositions include two symphonies and several smaller orchestral pieces, an opera, chamber music, and many choral settings. Among his solo songs are some settings of verses by Siegfried Sassoon which were made in co-operation with the poet.

The Saints Cyril and Methodius Cathedral in Nové Město, Prague, the Czech Republic, is the principal Czech and Slovak Orthodox Church.

Cyril Aloysius "Cy" Weidenborner (March 30, 1895 – November 26, 1983) was an American ice hockey player. He played as a Goaltender on the United States hockey teams. The team competed in the 1920 Summer Olympics, winning the silver medal.

Cyril Collard (20 September 1934 – 20 December 2011) played 13 games for Australian rules football club Hawthorn between 1957 and 1958, scoring 3 goals. He was the first indigenous Australian to play for Hawthorn being of the Noongar people of Western Australia.

Cyril James Smith OBE (11 August 1909 – 2 August 1974) was a virtuoso concert pianist of the 1930s, 1940s and 1950s, and a piano teacher.

Cyril Zuma (14 February 1985 – 4 September 2015) was a South African football midfielder who played for seven clubs in a seven-year career and captained the under-23 national team, then led by Steve Komphela. Zuma died in September 2015, after a car accident the previous month had left him in a coma.

Pope Cyril of Alexandria may refer to:

Cyril Alec "Bob" Stiles (10 October 1904 – 5 March 1985) was a New Zealand rower. He won a Silver medal at the 1932 Summer Olympics in Los Angeles in the coxless pairs with partner Rangi Thompson. He also won a Bronze medal at the 1938 British Empire Games in Sydney in the eights.