Manchester United will bring a reserve side, which is still worth millions of ponds to the County Ground on Tuesday 29th July.
When the two sides last played a pre season friendly a few years ago it ended 1-1 with about 15,000 fans turning up.
Swindon have also arranged a friendly against Premiership new boys Portsmouth also at home on Friday 25th July.
Swindon will also play at home to Wolves on Wednesday 16th July.
