John MacDonald (rugby union, born 1890)
John MacDonald (born 1890, date of death unknown) was a Scottish international rugby union player. He played as a forward.
MacDonald was capped three times for Scotland between 1921 and 1922. He played his club rugby for Glasgow Academicals. He was part of the Scottish team that shared the Five Nations Championship in 1922. Further details of his life and career are currently scarce.