Technical Abstract: Approximately 10 million tons of spent foundry sand (SFS) are generated in the U.S. each year, and their beneficial use in agricultural and horticultural applications is being considered. Other studies have demonstrated that trace elements are low enough in sands from iron, steel, and aluminum foundries to allow their beneficial use. Because data were not available on dioxins and dioxin-like compounds in SFSs, we analyzed representative spent sands from 10 foundries to assess the potential for dioxins to limit their use. The dioxin concentrations ranged from 0.01 to 3.13 ng TEQ/kg (TEQ, toxicity equivalents), with an average concentration of 0.58 ng TEQ/kg. These concentrations are within the range of natural background in soils, and no pathway for transfer of dioxin and dioxin-like compounds is considered to pose risk to receptor organisms.