The 8-time All-Ireland winner announced this morning that his glittering time in the blue jersey was over allowing him to focus on club football for his beloved St Judes.
The 34-year-old said: “Fare thee well sweet Anna Liffey…After12 seasons with the Dublin Senior Team I have decided to announce my retirement from inter-county football. It has been an absolute privilege to represent my county, fulfil my childhood dream and I feel so proud that my playing days have lasted so long and brought so much joy.
“I am grateful for the support of the Dublin County board, the GPA, countless managers, selectors, friends and backroom staff who have helped me over the years. In particular, Pat Gilroy, Jim Gavin and Dessie Farrell have been inspirational leaders, have backed me in their own way and have all helped me grow as a footballer and a person.”
The player, who famously came off the bench to catapult the Dubs to their first All-Ireland win for 16 years back in 2011, went on to say: “To my teammates, it has been an incredible journey and I am so proud of the friendships, the stories and the memories we have made over the years.
“St Jude’s GAA club has been a rock upon which I was able to build a career and it has been an honour to represent the club on the inter county stage. So many club mates and volunteers have helped me and without men like Padraic Monaghan and Damien Carroll it is unlikely I would have had the career I did.
“To my parents Maxie and Josie and brothers Bren and Sean -your support and love has been unwavering, and I am forever grateful. Each of you have inspired me to be the best I can be and given me all the tools to grow in every area of my life.
“Finally, to the Dublin supporters, I’ll never forget the roars, the excitement, those beautiful moments when Croke Park was rocking and the feeling that you had our teams back wherever we went around the country. I truly admire your passion for supporting our team and I’m looking forward to joining you in future. Grá Mór. Kev Mc.”
McManamon is one of seven Dubs who have collected eight All-Ireland medals alongside Stephen Cluxton, Michael Darragh Macauley, James McCarthy, Philly McMahon, Cian O’Sullivan and Michael Fitzsimons.
The St Judes man also has 10 Leinster medals and 5 National Football League titles making him one of the most celebrated and successful GAA players of all time.
The Dubliner spent most of last season working as a Sports Psychologist with the Irish Olympic boxing team but was always considered part of Dessie Farrell's plans.
But today's decision means he joins the likes of Michael Darragh MacAuley, Paul Flynn, Diarmuid Connolly and Bernard Brogan who have all retired in recent years.
Elsewhere Jack McCaffrey and Paul Mannion have stepped down but Dublin fans still harbour hopes that they can be convinced to return after a disappointing season that saw them neaten by Mayo in last summer's semi final.
And there are still big questions over Stephen Cluxton who was omitted from the senior squad all year. No statement has been made by the player nor the county board.