| Honorific Prefix: | Brigadier-General |
| F. M. G. Rowley | |
| Birth Date: | 4 January 1866 |
| Allegiance: | British Ceylon |
| Branch: | Ceylon Defence Force |
| Serviceyears: | 1886– |
| Rank: | Brigadier-General |
| Commands: | Commander of the Ceylon Defence Force |
Brigadier-General Frank George Mathias Rowley, (4 January 186628 July 1949) was a British Army officer and the 5th Commander of the Ceylon Defence Force from 1920 to 1927.
Rowley was educated at Highgate School.[1] He was commissioned into the British Army as a lieutenant in The Duke of Cambridge's Own (Middlesex Regiment) on 30 January 1886, and promoted to captain on 21 February 1895. In 1901 he was commandant of the Poonamallee depot serving the Madras Army.[2] The following year he was in October 1902 seconded for staff service, and appointed deputy assistant adjutant-general in Rangoon.[3]
He was appointed Commander of the Ceylon Defence Forces on 22 July 1920, and served until 8 February 1927. He was succeeded by Albion Earnest Andrews.[4]