Gyan, 31 became a free agent following the end of his loan spell with Al Ahli Dubai from Shanghai SIPG.
A statement on the club’s website read: An agreement has been reached with world famous footballer Asamoah Gyan to join Kayserispor.
President Dr Erol BEDİR, actor Asamoah GYAN, Gökhan Altıntaş, Tuna Kaya and our club officials have signed a 2 + 1 year contract with the Ghanaian in the last meeting in Istanbul.
Our president Dr.Erol BEDİR and Asamoah GYAN will move to Kayseri with 21.20 plane tonight.
The deal is believed to be worth €1.5 million euros annually.
Gyan was on the verge of joining Bursaspor but the move collapsed after the two parties failed to reach an agreement.
Last season Asamoah Gyan bagged eight goals in 21 appearances, while on loan with Al Ahli Dubai
The deal with Kayserispor in the Turkish topflight league means, the Black Stars all-time top scorer with 51 goals has returned to Europe for the first time since 2011 when he made a shocking move from Sunderland in the English Premier League to Al Ain in UAE.
Some facts about club.
Founded on 1966, Kayserispor is a professional Turkish football club located in the city of Kayseri.
They have won three trophies the second tie leg, Cup and Super Cup. In 2006 they became one of the co-winners of the UEFA Intertoto Cup.
Asamoah Gyan's new side finished 15th in the 18-club Turkish topfligh, which was just one place above the relegation zone.
The stadium of the club is Kayseri stadium with a Capacity of 40458. It was constructed in 2008.
The mountains in the emblem represent Kayseri's landmark Mount Erciyes, the K represents Kayseri, the S represents Spor and 1966 signifies the year the club (now Kayseri Erciyesspor) was founded.
From Sammy Heywood Okine