Theresa said, "I am delighted that Anthony Joshua has won a gold medal. I am writing to him to send him my congratulations. This is an incredible acheivement."
"It is a great honour for Barnet that we have a gold medal winner who trains at the Finchley and District Amateur Boxing Club in New Barnet."
"I really hope that Anthony goes on to further success in the boxing ring. Team GB did brilliantly and it was great that a boxing club in my constituency played a part in the great achievements of London 2012.
A celebration parade for the triumphant Team GB will take place in London later this week.