Otto Ritter von Dandl (13 May 1868 in Straubing – 20 May 1942) was a Bavarian politician and lawyer who was the last Minister-President of the Kingdom of Bavaria.

In 1906, von Dandl became an adviser of Prinzregent Luitpold, who ruled Bavaria in his nephew's, King Otto's stead.

With the death of Luitpold in 1912, his son Ludwig took up the position as Prinzregent (Prince Regent) of Bavaria and von Dandl became the chief of his cabinet.

On 2 November 1918, von Dandl reached an agreement with all major parties, to reform Bavaria and to build a new coalition government with him as leaders and prominent members of the Zentrumspartei and the SPD in ministerial posts.

[1] He only held this position for one year; with the collapse of Imperial Germany, the Kingdom of Bavaria was abolished by Kurt Eisner on 8 November 1918, who succeeded him to the office of prime minister, making von Dandl the last prime minister of the Kingdom of Bavaria.