MaryAnn Giella McCulloh serves as Co-Owner, Gallerist and Curator of One Art Space in the heart of Tribeca, New York. She also serves on the Executive Board of Directors of the National Association of Women Artists (NAWA), an organization with a legacy of women visionaries since 1889.

MaryAnn’s connection to the arts is deeply rooted in her family. Her brother, Dan Giella, founded One Art Space in 2011, and her father, Joe Giella, was the legendary comic book artist whose celebrated career included Batman and work with Stan Lee. MaryAnn and Dan grew up at their father’s drafting table, learning early that art could be both a creative calling and a meaningful professional career. The United States Postal Service honored Joe Giella by featuring his artwork on two stamps in the DC Comics Super Heroes collection, featuring Green Lantern and The Flash. He was also the recipient of a Harvey Award recognizing his lifetime achievement, decades of charitable work and contributions to the comic book arts.

Prior to her leadership at One Art Space, MaryAnn built an extensive career in high-end logistics brokering, business development and executive sales—experience that informs her understanding of the business, relationships and complexities surrounding today’s art market.

As a gallerist and curator, MaryAnn works across contemporary fine art and the secondary market, with a particular interest in established, museum-recognized and blue-chip artists alongside exceptional emerging talent. Her curatorial work at One Art Space has included exhibitions featuring Hunt Slonem, Shepard Fairey, Purvis Young and Chuck Connelly, reflecting a program that brings together distinctive and culturally significant voices in contemporary and post-war art. Her curatorial approach is grounded in identifying compelling artists and works, creating thoughtful connections across exhibitions, and cultivating meaningful relationships with collectors.

At One Art Space, MaryAnn is expanding a program that brings together curated exhibitions, significant secondary-market works, collector engagement and collaborations across the broader art community. The gallery is equally dedicated to fostering community engagement and encouraging the next generation of artists through initiatives including Free Arts NYC and WorkWell NYC, Mayor’s Office. One Art Space also continues its decade-long tradition of presenting Women’s History Month exhibitions, reflecting an enduring commitment to supporting and providing a platform for women artists while making art an active and meaningful part of the community.