Ronaldo's nomination comes after the 33-year-old last week denied rape allegations levelled against him by a woman who sued him in court in the United States.
Sportswear maker Nike Inc and video game maker Electronic Arts Inc, who both have worked with the five-times Champions League winner, said last Thursday they were concerned about the allegations.
European champions Real Madrid dominate the nominees with eight players, including Croatia midfielder Luka Modric and Wales forward Gareth Bale.
Modric won the Golden Ball as the best player at this year's World Cup in Russia, where Croatia finished runners-up, and last month claimed FIFA's The Best men's player award.
Bale scored twice in the Champions League final win over Liverpool.
France World Cup winners Paul Pogba, N'Golo Kante, Antoine Griezmann, Kylian Mbappe, Raphael Varane, one of the Real Madrid contingent, and captain Hugo Lloris have also been nominated.
A panel of journalists select the winner of the Ballon d'Or,which was first established in 1956 and will this year feature a women's award for the first time, to be decided from a shortlist of 15 players.
The award merged with FIFA's World Player of the Year prize from 2010-15 to create the FIFA Ballon d'Or, but returned to France Football in 2016 while FIFA established The Best awards.
The winners of the prestigious men's and women's awards will be announced at a ceremony in Paris on Dec. 3,
Men's nominees:
Sergio Aguero (Manchester City, Argentina)
Alisson (Liverpool, Brazil)
Gareth Bale (Real Madrid, Wales)
Karim Benzema (Real Madrid, France)
Edinson Cavani (Paris Saint-Germain, Uruguay)
Thibaut Courtois (Real Madrid, Belgium)
Cristiano Ronaldo (Juventus, Portugal)
Kevin De Bruyne (Manchester City, Belgium)
Roberto Firmino (Liverpool, Brazil)
Diego Godin (Atletico Madrid, Uruguay)
Antoine Griezmann (Atletico Madrid, France)
Eden Hazard (Chelsea, Belgium)
Isco (Real Madrid, Spain)
Harry Kane (Tottenham Hotspur, England)
N'Golo Kante (Chelsea, France)
Hugo Lloris (Tottenham Hotspur, France)
Mario Mandzukic (Juventus, Croatia)
Sadio Mane (Liverpool, Senegal)
Marcelo (Real Madrid, Brazil)
Kylian Mbappe (Paris Saint-Germain, France)
Lionel Messi (Barcelona, Argentina)
Luka Modric (Real Madrid, Croatia)
Neymar (Paris Saint-Germain, Brazil)
Jan Oblak (Atletico Madrid, Slovenia)
Paul Pogba (Manchester United, France)
Ivan Rakitic (Barcelona, Croatia)
Sergio Ramos (Real Madrid, Spain)
Mohamed Salah (Liverpool, Egypt)
Luis Suarez (Barcelona, Uruguay)
Raphael Varane (Real Madrid, France)
(Reporting by Christian Radnedge and Ken Ferris; Editing by Louise Ireland and Pritha Sarkar)
