Nationalist Thomas Kelly (de jure)Laurence O'Neill (de facto) Sinn Féin An election to Dublin Corporation took place on Thursday, 15 January 1920 as part of the 1920 Irish local elections.

Dublin was divided into ten borough electoral areas to elect 80 councillors for a five-year term of office on the system of proportional representation by means of the single transferable vote (PR-STV).

Whilst the Sinn Féin majority was small, they emerged from the election as by far the largest party on the Dublin Corporation council.

These were the first elections under the Local Government (Ireland) Act 1919, which introduced a form of proportional representation.

In 1919, the Local Government Board of Ireland created 10 borough electoral areas (BEAs), taking a greater account of population in the city, which took effect at these elections.