During summer chairman Stuart M. Dryden reinforced the squad with several players, Left-back Frank Clark announced his retirement and the club bought Frank Gray to cover the spot after bought from Leeds United in £500,000.[1] With the team plummeting to mid-table the club loaned in Forward Charlie George from Southampton F.C. who only played 4 matches [2] and failed to reinforce the offensive line already weakened after the departure of Tonny Woodcock to 1.FC Köln[3] and the injury of Trevor Francis. For replacing Archie Gemmill in midfield, the club bought Asa Hartford from Manchester City only to be a failure in three matches played being sold to Everton F.C.[4] Also, for the second half of the season arrived midfielder Stan Bowles from Queen's Park Rangers[5] but the transfer did not work out owing to differences between Bowles and manager Clough. The squad already playing four tournaments resented the disappointing of new arrivals in League finishing on a 5th spot.
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.
^The statistics for the following players are for their time during 1979–80 season playing for Nottingham Forest. Any stats from a different club during 1979–80 are not included. Includes all competitive matches.
^Smales, Ken (1991). Forest – The First 125 Years. Nottingham: Temple Printing. ISBN978-1870010092.
^Attaway, Pete (2010). Nottingham Forest: Brian Clough and His Legacy - A Complete Record 1975 - 2010. Southend-on-Sea: Desert Island Book. ISBN978-1905328833.