Carlyle Smith Beals, FRS (June 29, 1899 – July 2, 1979) was a Canadian astronomer.
He was born in Canso, Nova Scotia to Reverend Francis H. P. Beals and Annie Florence Nightingale Smith, on June 29, 1899.
Beals worked at the Dominion Astrophysical Observatory, Victoria, BC, until 1946. There, he studied emission lines in the spectra of certain hot stars, and studied gas clouds in the interstellar medium. He also developed astronomical instruments.
In 1946, he was made Dominion Astronomer in Ottawa and made a study of meteorite craters in Canada. In March, 1951 he was elected a Fellow of the Royal Society of London.
He retired in 1964. In 1969 Beals was made an Officer of the Order of Canada. The asteroid 3314 Beals and the crater Beals on the Moon are both named after him. He died on July 2, 1979, aged 80.