John Joseph Boylan
Member of the U.S. House of Representatives from New York's 15th district
In office March 4, 1923 – October 5, 1938
Preceded by	Thomas J. Ryan
Succeeded by	Michael J. Kennedy
Member of the New York Senate from the 13th district
In office January 1, 1919 – December 31, 1922
Preceded by	Jimmy Walker
Succeeded by	Ellwood M. Rabenold
Member of the New York Senate from the 15th district
In office January 1, 1913 – December 31, 1918
Preceded by	Thomas J. McManus
Succeeded by	Abraham Kaplan
Member of the New York State Assembly from the New York County, 11th district
In office January 1, 1910 – December 31, 1912
Preceded by	Owen W. Bohan
Succeeded by	John Kerrigan
Personal details
Born	September 20, 1878 (1878-09-20) New York City
Died	October 5, 1938 (1938-10-06) (aged 60) New York City
Citizenship	United States
Political party	Democratic Party
Alma mater	Manhattan College
Profession	Realtor, politician

John Joseph Boylan (September 20, 1878 – October 5, 1938) was an American politician who served eight terms as a Democratic member of the United States House of Representatives from New York from 1923 until his death in 1938.

Boylan was born in New York City the son of Patrick and Elizabeth (McElroy) Boylan. He attended the public schools, Cathedral School, De La Salle Institute, and Manhattan College. Boylan was employed as a postal clerk and afterward engaged in the real estate business.

He was a member of the New York State Assembly (New York Co., 11th D.) in 1910, 1911 and 1912.

He was a member of the New York State Senate from 1913 to 1922, sitting in the 136th, 137th, 138th, 139th, 140th, 141st, 142nd, 143rd, 144th and 145th New York State Legislatures.

He was elected as a Democrat to the 68th, 69th, 70th, 71st, 72nd, 73rd, 74th and 75th United States Congresses, holding office from March 4, 1923 until his death on October 5, 1938, in New York City.

Boylan died on October 5, 1938, in French Hospital in Manhattan; and was buried at the Calvary Cemetery in Queens.

• List of United States Congress members who died in office (1900–49)

• United States Congress. "John J. Boylan (id: B000726)". Biographical Directory of the United States Congress.