Garda Representative, Longford's Dave Conroy says some gardaí are forced to retire as a result.
466 gardai have been injured after being physically attacked on duty over the past two years.
There were 223 assaults in 2020 - rising to 243 last year.
Three gardai got serious head injuries in 2021, while others received fractures, dislocations and open wounds.
Longford's Dave Conroy, from the Garda Representative Association, says some officers have to retire due to assaults.