Joseph H. Margolis (September 28, 1908 – December 29, 1970) was an American politician who served as mayor of Chelsea, Massachusetts in 1970.

[1] He began his political career in 1933 as an unsuccessful candidate for the Chelsea board of aldermen.

[2] He left the house after two terms and enlisted in the United States Navy.

After the war, Margolis served multiple terms on the Chelsea board of aldermen and was assistant sergeant-at-arms and doorkeeper of the Massachusetts House of Representatives.

358 days into his first term, Margolis died suddenly at Whidden Memorial Hospital in Everett, Massachusetts.