Ayew, who netted nine times this season and played in 39 games, received an impressive 37% of the total votes from almost 6,000 supporters.
He beat Vicente Guaita (28.2%) and Gary Cahill (16.7%) to scoop the accolade, which he called "a really, really big moment." After a busy evening, Ayew collected a total of three awards: Player of the Season, Players' Player of the Season and Goal of the Season.
In an emotional acceptance speech on Palace TV’s End of Season Awards show - which you can watch in full here - Ayew said: "I’ve worked so hard to get into the team and I think the first season I came into this team wasn’t the best but the club had faith in me, the club wanted me to stay and I wanted to stay as well.
"I had the desire to have a better season and things have gone so well. I’m just grateful.
"I want to thank everyone at the football club; I want to thank the fans especially, they’ve been massive for us this season, for me especially they’ve been massive. I’d like to thank all the people that supported me within the difficult moments that I had in my football career.
"When I have this type of award I just think of my family and obviously of the fans. And one man that’s been so influential in my football career: that’s [mentor and former Olympique de Marseille president] Pape Diouf. I lost him within the period of COVID and he passed away, I wish he was still here so I could present him this."
Crystal Palace manager Roy Hodgson announced Ayew's achievement, and echoed the 28-year-old's pride, saying: "[Jordan] is an unbelievable enthusiast and hard worker, somebody really who never falls below a certain level of performance, someone who never misses a training session and is always lively and alert in each training session, irrespective if it’s the day after coming back after a long journey or after having a day or two off.
"He's made great strides going forward. When he came to us, he showed a lot of qualities but I think the qualities he possesses he really has worked on and improved... Well done, Jordan."
Ayew’s goals this season have been worth 14 points to Crystal Palace - with the frontman excelling in his first permanent season as an Eagle. He scooped two ManBetX Player of the Month trophies and a remarkable 10 eToro Man of the Match awards.
Everyone at the club would like to congratulate him for being 19/20’s Player of the Season.