Microplastics (MP), particles <5mm that are either manufactured or occur as breakdown products of larger plastics, are a component of Earth’s Plastisphere and are emerging as an important anthropogenic pollutant. They are found in every water system worldwide, including in New England where studies on the distribution and fate of MP are just now beginning. The most common MP found so far in our analyses are Polyethylene and Polypropylene, varying in size and shape. This study is part of a larger study of the body burden of MP in New Hampshire living resources, designed to build a baseline data set and supplement knowledge and understanding of MP that are present in New England. This study sheds light on occurrence of MP in both aquacultured and wild oysters. Oysters were collected throughout the summer field season of 2022. Because oysters are consumed whole, this investigation used whole-body preparations. After removal of tissue from the shell, biogenic material was chemically digested, and the remaining material was stained with Nile Red and analyzed using first confocal microscopy and subsequently LDIR. The results of the study show the incidence of MP pollution in New England oysters from different farm and reef sites, evidence that is helpful in siting oyster aquaculture, selecting oyster depuration locations, and making policies that pertain to estuary pollution and health.