| Omicron Delta Kappa | |
|---|---|
| ΟΔΚ | |
 | |
| Founded | December 3, 1914 Washington and Lee University |
| Type | Honor society |
| Affiliation | HSC |
| Former affiliation | ACHS |
| Status | Active |
| Emphasis | Leadership and scholarship |
| Scope | National |
| Motto | "The Laurel Crowned Circle" |
| Pillars | Scholarship, Service, Integrity, Character, Fellowship |
| Member badge |  |
| Colors | White, Black, and Light Blue |
| Flower | Blue delphinium |
| Publication | The Circle |
| Chapters | 287 active |
| Members | 350,000+ lifetime |
| Headquarters | 224 McLaughlin Street Lexington, Virginia 24450 United States |
| Website | odk.org |
Omicron Delta Kappa (ΟΔΚ), also known as The Circle and ODK, is an American collegiate honor society that recognized leadership and scholarship. It was founded in 1914, at Washington and Lee University in Lexington, Virginia and has chartered more than 400 chapters or circles. To be selected as a member of ΟΔΚ, students must be among the top 35 percent of all students at that particular institution and hold a leadership role in one of the society's five areas of recognition. Omicron Delta Kappa is a member of the Honor Society Caucus, along with Phi Beta Kappa, Phi Kappa Phi, and Sigma Xi.