The 1964/1965 League of Ireland was contested by 12 teams, and Drumcondra won the championship.
Final classification
Results
Top scorers
Rank Player Club Goals1 Jackie Mooney Shamrock Rovers 162 Eric Barber Shelbourne 14 Noel Bates St Patrick's Athletic 4 Joe McGrath Dundalk 10Austin Noonan Cork Celtic 6 Jack Fitzgerald Cork Hibernians 9Ned Halpin Drogheda Johnny Kingston Drumcondra Peter Mitchell Limerick 10 John McCole Cork Hibernians 8Turlough O'Connor Bohemians Donie Wallace Cork Hibernians
References