The National Hurling League is an annual competition in Ireland that features teams from various counties competing in the sport of hurling. It serves as a key part of the GAA (Gaelic Athletic Association) calendar, allowing teams to prepare for the more prestigious All-Ireland Championship. The league typically runs from January to March, with teams divided into different divisions based on their skill levels. Each team plays a series of matches, and the top teams advance to the knockout stages, culminating in a final to determine the league champion.