Lloyd B. Greer was an American architect who practiced in Valdosta, Georgia during the first half of the twentieth century. Several of the many hundreds of buildings that he is credited with designing are listed on the U.S. National Register of Historic Places.
Greer's birthplace has been variously reported as Tallapoosa, Georgia, and Iron City, Alabama. Ray Cumrine, who authored an unpublished study of Greer and his works, of which a copy is on file at the Lowndes County Historical Society in Valdosta, stated that "Lloyd Barton Greer was born in Iron City, Alabama, of Joseph Autry Greer and Julia Barton Teague Greer." According to Cumrine, Greer was born on 6 August 1885 and moved with his family to Atlanta, Georgia, in 1893. Greer was partly home-schooled before graduating from Atlanta's Tech High School. He entered Georgia Tech in 1900 and graduated with a degree in architecture in 1903. Greer received subsequent training in the Atlanta firm of Hentz & Reid. Still according to Cumrine, from 1912 he represented that firm on the sites of various projects in northern Florida and southern Georgia before resigning in 1915 to set up his own practice in Valdosta. However, the Valdosta City directory for 1913 shows him already practicing there as of that year under the style, Bishop & Greer.
He succumbed to complications of a heart attack on 26 September 1952.