List of 2019–20 League of Ireland transfers

This is a list of transfers involving clubs that played in the 2020 League of Ireland Premier Division and 2020 League of Ireland First Division.

The pre-season transfer window opened on 1 December 2019 and closed on 22 February 2020 for domestic transfers and on 2 March 2020 for foreign transfers. Players without a club may join one at any time, either during or in between transfer windows.

Bohemians
In: Out:

Cork City
In: Out:

Derry City
In: Out:

Dundalk
In: Out:

Finn Harps
In: Out:

St Patrick's Athletic
In: Out:

Shamrock Rovers
In: Out:

Shelbourne
In: Out:

Sligo Rovers
In: Out:

Waterford
In: Out:

Athlone Town
In: Out:

Bray Wanderers
In: Out:

Cabinteely
In: Out:

Cobh Ramblers
In: Out:

Drogheda United
In: Out:

Galway United
In: Out:

Longford Town
In: Out:

Shamrock Rovers II
In: Out:

UCD
In: Out:

Wexford
In: Out: