Raheem Sterling and Kevin De Bruyne are the two other nominees from Manchester City while the four nominees from Liverpool are Trent Alexander-Arnold, Virgil van Dijk, Jordan Henderson and Sadio Mané.
Liverpool defender Van Dijk has the chance to emulate Cristiano Ronaldo by becoming the first player since him to win back-to-back PFA Player of the Year awards.
Arsenal's Spanish head coach Mikel Arteta (L) high-fives Arsenal's English striker Bukayo Saka (R) as Saka goes off substituted during the English Premier League football match between Wolverhampton Wanderers and Arsenal at the Molineux stadium in Wolverhampton, central England on July 4, 2020.More news: Iran continues to expand stockpile of enriched uranium: IAEA
Earlier, Alexander-Arnold had pocketed the Premier League Young Player of the Season award.
Mount, 21, made 53 first-team appearances for the Blues and also made his England debut last September in a breakthrough campaign, while Abraham scored 15 Premier League goals and 18 overall.
Liverpool forward Mohamed Salah was player of the year for the 2018-19 season, just ahead of De Bruyne.
There is a similar split for the women's award, with four players from Women's Super League champion Chelsea on the shortlist: Beth England, Sophie Ingle, Guro Reiten and Ji So-Yun.More news: Kudlow: Trump Administration to Unveil Aid for Airlines in Matter of Weeks
Reiten was also nominated for the FWA Footballer of the Year but lost out to Vivianne Miedema who could add to her personal honours tally with the PFA award.
Arsenal captain Kim Little completes the list of nominees.
Team-mate Erin Cuthbert finds herself surrounded by Manchester-based players in the Young Player of the Year category alongside City's Lauren Hemp, Chloe Kelly, Ellie Roebuck and Georgia Stanway and United's Lauren James.More news: Afghan officials primed for talks with Taliban after deal on prisoners