Jonas Staugaitis (pronunciationⓘ; 20 May 1868 in Omentiškiai, Suwałki Governorate – 18 January 1952 in Kaunas) was the acting President of Lithuania during the December 1926 coup d'état.

[1] He was formally elected for a few hours as the Speaker of the Seimas; as the highest-ranked official, he also became the de jure President of Lithuania.

He renounced the office after the coup d'état was complete.

He was a medical doctor, having studied at the University of Warsaw.

[2] He is buried in the Petrašiūnai cemetery in Kaunas.