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We construct a stellar cluster catalog for the Panchromatic Hubble AndromedaTreasury (PHAT) survey using image classifications collected from the AndromedaProject citizen science website. We identify 2,753 clusters and 2,270background galaxies within ~0.5 deg$^2$ of PHAT imaging searched, or ~400kpc$^2$ in deprojected area at the distance of the Andromeda galaxy (M31).These identifications result from 1.82 million classifications of ~20,000individual images (totaling ~7 gigapixels) by tens of thousands of volunteers.We show that our crowd-sourced approach, which collects >80 classifications perimage, provides a robust, repeatable method of cluster identification. The highspatial resolution Hubble Space Telescope images resolve individual stars ineach cluster and are instrumental in the factor of ~6 increase in the number ofclusters known within the survey footprint. We measure integrated photometry insix filter passbands, ranging from the near-UV to the near-IR. PHAT clustersspan a range of ~8 magnitudes in F475W (g-band) luminosity, equivalent to ~4decades in cluster mass. We perform catalog completeness analysis using >3000synthetic cluster simulations to determine robust detection limits anddemonstrate that the catalog is 50% complete down to ~500 solar masses for ages<100 Myr. We include catalogs of clusters, background galaxies, remainingunselected candidates, and synthetic cluster simulations, making allinformation publicly available to the community. The catalog published hereserves as the definitive base data product for PHAT cluster science, providinga census of star clusters in an L$^*$ spiral galaxy with unmatched sensitivityand quality.

PHAT Stellar Cluster Survey. II. Andromeda Project Cluster Catalog