The 53-year-old, who won eight caps for his country and is Chelsea's third highest goalscorer of all time, was convicted of the offence last week.
Luton Crown Court judge Barbara Mensah described Dixon's attack as “shocking and sickening to watch”.
The former footballer, who made one brief substitute appearance at the 1986 World Cup in Mexico, denied the assault and told the court he had acted in self-defence.
Dixon scored four times for England and netted 193 goals for Chelsea during nine years at Stamford Bridge between 1983-92.
The striker also had spells at Southampton, Luton, Reading, Millwall, Watford and Doncaster Rovers. – Reuters
Original source: Chelsea legend jailed for assault