This dataset represents a validation record for Landsat 8/9 Operational Land Imager (OLI) Aquatic Reflectance (AR) products. The dataset consists of combined AERONET-OC (n=418) and GLORIA (n=1,638) hyperspectral remote sensing reflectance (Rrs) measurements in the visible to near infrared spectral bands coincident with same-day OLI acquisitions. The dataset is intended to evaluate the accuracy of candidate algorithms against both coastal and inland waters during Landsat Collection reprocessing events.