Hjalmar Mehr
Hjalmar Mehr (right) with former Borgarråd Yngve Larsson inside Stockholm City Hall 1963
8th Mayor of Stockholm
In office 15 October 1958 – 15 October 1966
Monarch	Gustaf VI Adolf
Preceded by	Erik Huss
Succeeded by	Per-Olof Hansson
In office 15 October 1970 – 30 September 1971
Monarch	Gustaf VI Adolf
Preceded by	Thorsten Sundström
Succeeded by	Albert Aronsson
Governor of Stockholm County
In office 1971–1977
Monarchs	Gustaf VI Adolf Carl XVI Gustaf
Preceded by	Allan Nordenstam
Succeeded by	Gunnar Helén
Personal details
Born	(1910-11-19)19 November 1910 Sankt Matteus församling
Died	26 December 1979(1979-12-26) (aged 69) Adelsö församling
Political party	Social Democrats
Spouse	Liselotte Lina Meyer ​ ​ (m. 1937)​
Occupation	Politician

Hjalmar Leo Mehr (19 November 1910 – 26 December 1979) was a Swedish Social Democratic politician, mayor of Stockholm (1958–1966, 1970–1971) and governor of Stockholm County (1971–1977). He promoted many radical socialist welfare state policies but is mostly remembered and criticized for the redevelopment of Norrmalm, where a significant part of the old Stockholm was demolished.^[1][2]

In 1969, Mehr was elected president of the newly established Swedish Association of Local Authorities (Svenska Kommunförbundet), an association that existed from 1969 to 2007 (now the Swedish Association of Regions) to interact with the Riksdag of Sweden.

Mehr's parents, Sara and Bernhard Meyerowitch, were Russian-Jewish revolutionaries (mensheviks) who after the failed 1905 Russian Revolution fled to Sweden, where Hjalmar was born and named after Hjalmar Branting.^{[citation needed]}