Willy Hugo Hellpach (26 February 1877 in Oels, Silesia – 6 July 1955 in Heidelberg) was the sixth State President of Baden.
In 1922, he became Minister for Teaching, and in 1924, with the surge of support to the DDP, became State President of Baden.
In elections the following year, the Centre Party under Gustav Trunk regained their majority.
Hellpach then ran for Reich President following the death of Friedrich Ebert, but only received 5.8% of the vote.
He wrote a book Geopsyche in 1935 that is credited with being the first mention of the field of environmental psychology.