|United States Attorney for the Southern District of New York|
March 14, 1845 – September 1, 1848
|President||James K. Polk|
|Preceded by||Ogden Hoffman|
|Succeeded by||Charles McVean|
December 10, 1838 – March 12, 1841
|President||Martin Van Buren|
|Preceded by||William Price|
|Succeeded by||Ogden Hoffman|
|12th United States Attorney General|
November 15, 1833 – July 4, 1838
Martin Van Buren
|Preceded by||Roger B. Taney|
|Succeeded by||Felix Grundy|
|Member of the New York State Assembly from Albany County|
January 1, 1828 – December 31, 1828
Serving with William N. Sill, David I. D. Verplanck
|Preceded by||Isaac Hamilton, John Haswell, Henry Stone|
|Succeeded by||James D. Gardner, Moses Stanton, Chandler Starr|
|District Attorney of Albany County|
February 19, 1821 – June 14, 1825
|Preceded by||Samuel Foot|
|Succeeded by||Edward Livingston|
Benjamin Franklin Butler
December 17, 1795
Kinderhook Landing, New York, U.S.
|Died||November 8, 1858 (aged 62)|
|Resting place||Woodlawn Cemetery, The Bronx, New York|
|Spouse||Harriet Allen (m. 1818-1853, her death)|
|Children||9, including William Allen Butler|
|Relatives||Alfred Booth (Grandson)|
Benjamin Franklin Butler (December 17, 1795 – November 8, 1858) was a prominent lawyer from the state of New York. A professional and political ally of Martin Van Buren, among the many elective and appointive positions he held were Attorney General of the United States and United States Attorney for the Southern District of New York. He was also a founder of New York University and one of the founders of the Children's Village school in New York City. 
He was the son of Medad Butler and Hannah Butler (née Tylee) of Kinderhook Landing, in Columbia County, New York. He studied at Hudson Academy in Hudson, New York, and read law with Martin Van Buren, whose son John Van Buren later read law with Butler.
Butler was admitted to the bar in 1817, and became Martin Van Buren's partner. In his 1903 book The Art of Cross-Examination, author Francis L. Wellman indicated that Butler was regarded during his life as a highly effective trial lawyer, and one of the most successful cross-examiners of his day.
Butler was one of the earliest members of the Albany Regency. When fellow Regency member and Van Buren ally Roger Skinner was appointed Judge of the United States District Court for the Northern District of New York in 1819, he sold his law office to Butler, who took over Skinner's clients and pending cases.
Butler began his political career as district attorney of Albany County, serving from 1821 to 1825. He was appointed one of the three commissioners to revise the State statutes in 1825. Butler was a member from Albany County of the New York State Assembly in 1828. In 1833, he served as commissioner for New York to adjust the New Jersey boundary line.
On November 15, 1833, President Andrew Jackson appointed Butler Attorney General, an office he held until 1838. From that year until 1841, and from 1845 to 1848, he was United States Attorney for the Southern District of New York.
He was a prominent participant in the 1844 Democratic National Convention. As one of the leaders of the New York delegation, he supported the candidacy of Martin Van Buren and opposed the 2/3 rule for nominating, but failed in both cases. In the end, he was the one to announce that the New York delegation would switch to eventual winner James K. Polk. Van Buren recommended Butler to Polk for a cabinet position but told Polk that he was loath to leave his lucrative law practice and so would not agree unless offered the office of Secretary of State. Polk ended up offering him Secretary of War, but Butler declined, stating that he would only accept State or Treasury.
Butler was a regent of the University of the State of New York from 1829 to 1832. He was instrumental in founding New York University in 1831 and served in various capacities with the university from its inception. He received the honorary degree of LL.D. from Rutgers University in 1834. He was appointed principal professor of New York University in 1837.
In 1818, he married Harriet Allen; their children included attorney William Allen Butler, and Lydia Allen Butler, who married Alfred Booth and was the mother of Sir Alfred Allen Booth, 1st Baronet, a director of Alfred Booth and Company and chairman of Cunard.
While visiting Europe in 1858, he died in Paris, France. He was buried at Woodlawn Cemetery in The Bronx. Fort Butler, one of the main forts built for the forced removal of the Cherokee Indians on the Trail of Tears, was named for him.
- Levy, Uriah Phillips; Butler, Benjamin F. (1858). Defence of Uriah P. Levy: Before the court of inquiry held at Washington City, November and December, 1857 (ebook). Washington D.C.: W. C. Gardner. Retrieved May 17, 2014.
- "OUR CITY CHARITIES--NO. II.; The New-York Juvenile Asylum". The New York Times. January 31, 1860. Retrieved November 21, 2015.
- Wellman, Francis L. (1903). The Art of Cross-Examination. London: The Macmillan Company. p. 233). Retrieved October 26, 2012. at Internet Archive
- Van Buren, Martin; Mackenzie, William Lyon (1846). The Life and Times of Martin Van Buren: The Correspondence of His Friends, Family and Pupils. Boston, MA: Cooke & Co. p. 197.
- Julian, George W. (1884). Political Recollections, 1840-1872. Hansebooks GmbH. pp. 56–58. ISBN 9783337080709.
- Riggs, Brett H.; Duncan, Barbara (2003). Cherokee Heritage Trails Guidebook. Chapel Hill, NC: University of North Carolina Press in association with the Museum of the Cherokee Indian. p. 189. ISBN 0-8078-5457-3.
- Thomas, Gordon L. (1959). "Benjamin F. Butler, prosecutor". Quarterly Journal of Speech. Published on behalf of the National Communication Association 95th Anniversary in 2009. 45 (3): 288–298. doi:10.1080/00335635909382362. ISSN 0033-5630.
- Finding Aid to Benjamin Butler Papers, 1796-1910 at the New York State Library, accessed May 18, 2016.
- Media related to Benjamin Franklin Butler (lawyer) at Wikimedia Commons