Mooy was the vital linchpin in midfield, topping the club's stats in several categories, as Huddersfield Town defied early expectations to make the Championship promotion play-offs.
They scrapped their way past Sheffield Wednesday and Reading on penalties in the play-offs and will now line up in the most lucrative league in the world.
It will be the Yorkshire club's first time in the top flight competition since 1972, completing their steady rise from the fourth-tier Division Three in 2004 through the leagues to the top.
Mooy's mastery has been integral in their successful season, so much so the Manchester City loanee was voted Huddersfield Town Player of the Year.
He was also included in the Professional Footballers Association Championship Team of the Season, the Championship Team of the Season and was the only Huddersfield player named in the English Football League Team of the Season.
KEY STATS FROM MOOY'S 45 CHAMPIONSHIP APPEARANCES:
Passes: 68.9 per game - leads Huddersfield, 2nd overall in Championship
Key Passes (final pass that led to a shot): 2.1 per game - leads Huddersfield, 8th overall in Championship
Crosses: 1.4 per game - leads Huddersfield, 18th overall in Championship
Assists (final pass that led to a goal): 7 in the season - 2nd at Huddersfield, 16th overall in Championship
Tackles: 2.3 tackles per game - 2nd at Huddersfield, 25th overall in Championship
Minutes played: 3843 - 2nd at Huddersfield, 23rd overall in Championship
Goals: 4 - 3rd at Huddersfield, 91st overall in Championship
Pass completion percentage: 82.5 per cent - 3rd at Huddersfield, 44th overall in Championship
* (statistics from WhoScored.com)