ONE SIGMA is a unified concept within Sigma Gamma Rho Sorority, Inc. that embodies the collective commitment of its members, affiliates, and staff to advance the sorority's mission, vision and values with unity, purpose, and sisterhood.

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It reflects the alignment of members, affiliates, and staff across all regions, leadership levels, and affiliations, working together as one cohesive body to achieve organizational goals, foster impactful service, and strengthen the bonds of sisterhood.