The Irish international has endured a difficult year at Manchester City and his Ireland team-mate maintains a move away is in his best interests
Given failed to make an appearance for Manchester City in the Premier League this year, mainly because of injuries and stiff competition from first-choice Joe Hart.
Speculation has linked the 35-year-old with a move away from Eastlands, with Celtic thought to be interested, but Keane believes the club who ends up with Given will be getting a high-quality goalkeeper.
Keane told Sky Sports News: "I still feel he is the best keeper in the Premier League.
"I'm biased because I have worked with Shay and he is a good friend but, not only that, he is a top-class goalkeeper.
"It has been a frustrating season for him and he has come out and said that.
"But I am sure in the summer, after getting these games behind him, he'll look forward to a break and he'll certainly get a club for next season, no doubt about that.
"Whoever does buy him would be getting a world-class goalkeeper and someone who is great to have around the dressing room as well."