|Gregory John Barro|
|Louisiana State Senator for District 37 (Caddo and Bossier parishes)|
|Preceded by||Sydney B. Nelson|
|Succeeded by||Max T. Malone|
Shreveport, Caddo Parish
|Political party||Democratic Party|
|Alma mater||Louisiana State University Law Center|
Gregory John Barro, known as Greg Barro (born March 1957), is an attorney in Shreveport, Louisiana, who served as a Democrat in the Louisiana State Senate from 1992 to 1996. He represented District 37, which covers parts of Caddo and Bossier parishes in the far northwestern portion of the state.
Barro is a son of the late Albert Barro, Sr. His paternal grandparents are the late Abe and Pauline Aura Barro. His brother is Albert Barro, Jr., also of Shreveport.
In 1987, Barro nearly unseated Republican State Representative Art Sour in District 6. On November 16, 1991, Barro won his Senate seat in the same election in which the Democrat Edwin Washington Edwards defeated former Ku Klux Klansman David Duke for governor of Louisiana. Duke ran as a Republican without official party support. The incumbent Democratic state senator, Sydney B. Nelson, a Shreveport lawyer, did not seek a fourth term.
Barro defeated Republican Ronald Bradford "Ron" Fayard (1946–2011), a 1964 graduate of Bossier High School and  a Realtor from Bossier City, 59-41 percent. In 1995, Barro ran a strong third in the nonpartisan blanket primary but lost a general election berth to another Democrat, Melissa Flournoy, a state representative who was in turn handily defeated by the Republican Max T. Malone of Shreveport.
Barro graduated from Captain Shreve High School, where one of his classmates was future Shreveport Mayor Keith Hightower. Barro received his Bachelor of Arts degree from Louisiana State University in Baton Rouge, and procured his legal degree from the LSU Law Center. He is Roman Catholic.
- "Membership in the Louisiana State Senate, 1880-2012" (PDF). legis.state.la.us. Archived from the original (PDF) on February 24, 2012. Retrieved April 24, 2010.
- "Katherine Barro obituary". Shreveport Times, December 5, 2012. Retrieved December 6, 2012.
- "Louisiana primary election returns, October 19, 1991". staticresults.sos.la.gov. Retrieved December 6, 2012.
- "Ronald Bradfvord Fayard obituary". Shreveport Times, March 11, 2011. Retrieved March 11, 2011.
- "Real Estate Guide Directory in Bossier City". realproguide.com. Retrieved April 24, 2010.
- "Louisiana election returns, November 18, 1995". staticresults.sos.la.gov. Retrieved December 6, 2012.
- "Senator Gregory J. "Greg" Barro". senate.legis.la.us. Retrieved April 24, 2010.
- "Louisiana: Barro, Gregory John", Who's Who in American Politics, 2003-2004, 19th ed., Vol. 1 (Alabama-Montana) (Marquis Who's Who: New Providence, New Jersey, 2003), p. 769
Sydney B. Nelson
|Louisiana State Senator from District 37 (Caddo and Bossier parishes)
Gregory John Barro
Max T. Malone