The 24-year-old has forged a strong friendship with his fellow Wales international, and the pair even lived together in the English capital for a spell.
While Ramsey has flourished at Arsenal after an initially tricky start, Gunter was unable to forge a successful career at Tottenham Hotspur.
And the Gunners midfielder wished his fellow Welshman a happy 26th birthday via his Instagram page on Tuesday afternoon.
Ramsey wrote: “A big happy birthday to my best man and good friend @chrisgunter2, have a good one! 👋👊👋”
Ramsey scored 10 goals in 41 appearances in all competitions for Arsenal last season.
The Wales midfielder has won two FA Cup titles in the past two seasons, helping Arsene Wenger’s side retain their crown thanks to a 4-0 win against Aston Villa in May.
The Arsenal man made the move to north London in a £10m move from Cardiff City.
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