The Georgia star moves to Paris for a mooted €75m fee, signing a contract to 2029.
Kvaratskhelia won the Scudetto with Napoli and finished with a record of 54 goals and assists in 107 appearances.
"It's a dream to be here," said the 23-year-old winger. "I've heard so many positive things about PSG.
"I feel immense pride in joining this great club and I'm really looking forward to wearing my new colours."
PSG also announced: "Khvicha is one of the most exciting players in world football - a fantastic talent, but also a player who has courage and fights for the team above all else."
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Paris Saint-Germain
AFerIlzD5036
132
Today is my birthday please can I get like from you guy 🙏
JPSTANCE
79
Madrid, Man Utd, and Barca are teams when they, the whole 🌎 stops. Nobody cares about the movements of teams like PSG,City, and the likes in the market. Why? their not bigger than Real, Man utd and Barca.
Riuadisty
65
When do players dream to play for PSG? Why speak lies you are here for the money that's all!
gudiest01
49
Napoli is better than psg
Everblessed10
22
Zero progression in the rest of your career bruh. You gone to farmers league 🤔
ThreeEyedRaven
16
Napoli sold Kvarats for 75m in January while competing for seria A, but wouldn't let oshimen go for less than 100m last summer. Double standards 🤷🏻♂️🤷🏿♂️!!!! That racist Napoli president refused to do business with Chelsea last summer and that was oshimen preferred destination, but look how easily Kvarats was sold in January no fuss or internal issues.