Lambda Boulé is a member organization of the Sigma Pi Phi Fraternity in the Columbus Ohio metropolitan area. It was the 11th membership organization chartered under the Sigma Pi Phi Fraternity in the United States. Today, its membership consists of roughly 50 distinguished professional businessmen.
 
Lambda Boulé was chartered on June 21, 1921, in Columbus Ohio at the Spring Street YMCA. The chartering of Lambda was led by Grand Sire Archon Harry W. Pace, with the assistance of W.H. Bentley and A.L. Thompson of Delta, and T.K. Gibson of Kappa Boulé.
 
Lambda Boulé became the first Boulé in the sovereign State of Ohio.  Charter members were as follows:  Arthur Wesley Hardy, Sire Archon; Albon Langston Foster, Grammateus; George Wade Mosby, Thesauristes; William Arthur Method, Agogos;  Archon Roy Craig Carter, Rhetoricos; Archon John A. Bailey, John P. Bowles, Langston Brown, and G.A. Steward.
 
Today, members of Lambda Boulé support social actions programs for disadvantaged youth in promoting scholarships for higher education, mentoring youth and sponsoring other youth programs in the Central Ohio area.

In 2008, Lambda Boulé established a non-profit organization referred to as "Lambda Boulé Foundation". Its mission is to fund the Lambda Boulé social action programs.