Dundalk Football Club ( ; ) is a professional association football club that competes in the League of Ireland Premier Division, the top tier of football in the Republic of Ireland. The club is based in Dundalk and its home ground is Oriel Park. The club crest is three martlets on a shield, which was adopted from the town's old coat of arms, and the team colours are white shirts and black shorts. Founded in 1903 as Dundalk G.N.R., the works-team of the Great Northern Railway, they were a junior club until they were invited to join the Leinster Senior League in 1922–23. After playing at that level for four seasons, they were elected to the League of Ireland for the 1926–27 season. Six seasons later, they became the first club from outside Dublin to win the league title. They have won 49 trophies at national and all-Ireland level as of 2021, including four League and Cup 'Doubles', and are the only club to have won a league title or an FAI Cup in every decade since the 1930s. They are the second most successful club in the League's history (with 14 league titles), and are the most successful in the Premier Division era. Dundalk are also the highest-ranked Irish club in European football as measured by UEFA club coefficients. They made their European debut in the 1963–64 European Cup and in that campaign, they became the first Irish side to win an away match in Europe. Their best performance in the European Cup was in 1979–80, when they reached the last 16, and they also reached the last 16 of the European Cup Winners' Cup in 1981–82. They are the only Irish club to have qualified for the Europa League group stage twice and in 2016–17, they became the first team from Ireland to both win points and win a match at that level of European competition. They remain the only Irish team to have done so as of 2022–23. History Dundalk G.N.R. (1903–1930) The Dundalk Great Northern Railway (G.N.R.) Football Club was established during the 1883–84 season as a rugby football club. They played their final rugby match in February 1903, and in September 1903 the club switched codes to association football, setting in motion their journey to become the modern-day Dundalk F.C. The new club, known locally as "the Railwaymen", adopted the Dundalk Athletic Grounds (a facility