Johann Heinrich Bartholomäus Walther (1737–1802) was a Baltic German architect, working in Tartu where he produced a number of buildings including Tartu Town Hall.

Life Walther was born in Rostock in 1737. He moved to Tartu in the Russian Empire where he was a master builder. Following the Great Fire of Tartu in 1775 he designed Tartu Town Hall and the Von Bock House in the centre of the city.Phenomenological Alma Mater. Borders of the Visible and the Invisible in Heritage Protection , Juban Maiste, 2009, p.195, Tartu University, utlib.ee, retrieved 30 December 2013

Walther was buried in Tartu on 2 April 1802.

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