The No.3 claims the award for the first time this season after edging out fierce competition from Diogo Jota in a fan poll on Liverpoolfc.com.
The Brazilian featured in all six of the Reds' fixtures during the opening month of 2022, racking up four goals and a Player of the Match award.
Upon collecting the prize at the AXA Training Centre on Friday, Fabinho said: "It was a special month for me and for the team.
"Of course, everyone talks about my goals, it's not normal that I score five goals in seven or eight games, so it was a different month for me. But if I just help the team to get the wins, get the three points, I will always be happy.
"It's always special to play good football and be recognised by the fans. I thank the fans, everyone who voted for me. Hopefully the next month will be special as well."
After making his 100th Premier League appearance in the 2-2 draw at Chelsea, Fabinho scored twice in the Emirates FA Cup third-round victory over Shrewsbury Town at Anfield.
The 28-year-old was then the Reds' standout performer in the 3-0 triumph over Brentford at home, having opened the scoring with a clinical header.
He would finish the month with two successful trips to London, helping Liverpool beat Arsenal to secure a spot in the Carabao Cup final and then wrapping up a 3-1 win at Crystal Palace from the penalty spot.
Asked for the favourite of his goals during the month, Fabinho said: "Maybe the penalty I scored against Shrewsbury.
"It was my first penalty here at Liverpool during the game. It was a long time without shooting a penalty, so it was nice for me to score my first penalty in the Liverpool shirt."
Standard Chartered Men's Player of the Month 2021-22
January: Fabinho
December: Mohamed Salah
November: Trent Alexander-Arnold
October: Mohamed Salah
September: Mohamed Salah
August: Mohamed Salah