John Lackner Ducker (September 3, 1922 – April 15, 2014) was an American politician in the state of Florida.

Ducker was born in Fort Thomas, Kentucky.

[1][3] Ducker was a member of Phi Beta Kappa.

He was also active in the Young Republicans Club, American Legion, Bar Association of Florida, Sportsmen Association, Chamber of Commerce, Episcopal Church, and Boy Scouts.

[1] Ducker served in the United States Army's Signal Corps as a second lieutenant during World War II.