Parvomay Neck (Bulgarian: Първомайски провлак, ‘Parvomayski Provlak’ \p&r-vo-'may-ski 'pro-vlak\) is the 5 km long and 1.55 to 3.5 km wide ice-covered neck between Discovery Bay to the northeast and Shopski Cove and Yankee Harbour to the southwest, linking the northwestern and southeastern parts of Greenwich Island in the South Shetland Islands, Antarctica.