Mark Dagley (b. 1957, Washington D.C.) is a visual artist who studied painting & sculpture at the Corcoran School of Art and the Boston Museum School.

Dagley is a member of the American Abstract Artists and is perhaps best known for his geometric paintings which have been displayed at galleries, foundations, and museums throughout the United States and Europe. His first solo exhibition took place in 1986, at the Tony Shafrazi Gallery. Paintings from this exhibition were purchased by the German chocolate manufacturer Dr. Peter Ludwig and by the Eli Broad Family Foundation. During the 1980’s, Dagley exhibited frequently in Amsterdam, Madrid, Düsseldorf, Milan and many other European cities.

In 1993 Dagley had his first Museum exhibition at the Kunstverein St. Gallen, Switzerland. In the same year, he received his first major commission from Hoffman/LaRoche Pharmaceuticals in Switzerland: two wall reliefs, nine-foot square, which were installed in their new office building outside of Basel.

His work can be found in the collections of the Smithsonian Museum of American Art, University of Michigan Museum of Art, the Museo Nacional Centro de Arte Reina Sofia, Kunstmuseum St. Gallen, the Musée des Beaux Arts La Chaud de Fonds and the Bloomingdales Corporation.

His most recent exhibitions were at Minus Space (2008), Nyehaus (2007), McKenzie Fine Art (2006), Up & Company, (2005)