The Russian operator previously struck a deal to partner with Russian football club CSKA Moscow in 2017.
Aleksandr Golovin, who plays his club football for AS Monaco, is currently a regular for the Russian national side.
AS Monaco has continued to expand its development overseas, having entered China in 2018, adapting its website and official accounts for the Asian market.
Juli Ferré Nadal, Commercial and Marketing Director of AS Monaco, said: "Russia is a key market for us and we are convinced this collaboration will contribute to the development and consolidation of our relationship with Russian sports lovers.
"AS Monaco and BetCity will take a step forward to achieve common ambitions and join forces in the digital area to provide interesting and exclusive content for the fans."
Sergey Samsonenko, BetCity President, said: "The new partnership will allow us to reach a new level in today’s world football.
"We are convinced AS Monaco will help us effectively accomplish the most ambitious projects and marketing-related targets."
