Myrtle Ethel Maclagan MBE (2 April 1911 – 11 March 1993) was an English cricketer who played as a right-handed batter and right-arm off break bowler.

[1][2] Maclagan attended the Royal School, Bath, where she was in the cricket team for six years, once taking five wickets in five balls in an inter-school match.

On the very first day of women's Test cricket, at Brisbane in December 1934, Maclagan bowled the first ball, took the first wicket, had 7 wickets for 10 runs in the Australian innings and opened the England innings to score 72 runs.

The English men's team had lost the Ashes a few months earlier, and The Morning Post praised Maclagan's batting prowess with the quatrain: After the 1934–35 tour to Australia and New Zealand, Maclagan also played against Australia in England in 1937.

[1] Maclagan served as an officer in the Auxiliary Territorial Service during World War II.