The 23-year-old Wales international is looking forward to competing at a showpiece event.
The highly-rated left-back told the Swans' official website: "There are a lot of good, young defenders in the Premier League, so it's a great honour for me.
"It's also great recognition for the club to have three representatives in the squad because it shows how far we've come.
"For me personally, it wasn't too long ago that I was playing my football in the Conference.
"Less than three years on I've represented my country, played in the Premier League and now I'm on my way to the Olympics. To say it's gone really well would be an understatement of the biggest order."