John Angus Macsween (17 October 1939 – 12 July 2006) was a Scottish butcher and entrepreneur who helped popularise haggis as an international dish.
[1][2][3][4] Macsween came from a family of butchers in Edinburgh, where he noted the popularity of haggis among English rugby fans attending international matches at Murrayfield Stadium.
[1] After taking over the family business in 1975, the subsequent popularity of their haggis led to his opening the world's first purpose-built haggis factory, and the sale of the butchers company.
[1][5] Macsween started to produce what was described as a vegetarian haggis in 1984, after a request from the Burns Supper at the Scottish Poetry Library.
[2] Macsween married Kate Mackay, the daughter of James Wilson McKay, who became Lord Provost of Edinburgh, in 1964.