格伦杜兰足球俱乐部（Glentoran F.C.）是位于北爱尔兰贝尔法斯特东部的足球会。球队成立于1882年，以椭圆球场（The Oval）作为主场球场，现时在北爱尔兰超级联赛中作赛。球衣颜色为绿、红及黑色。

格伦杜兰最主要的敌对球队是连菲特，两者合称为贝尔法斯特「两大」（Big Two），于贝尔法斯特凯尔特人（Belfast Celtic）退出后，传统上「两大」几乎完全支配北爱尔兰的本土足球，两队于每年的拆礼物日安排上演一场联赛大战，通常是整个球季吸引最多球迷进场观战的比赛。

Glentoran Football Club is a semi-professional association football club in Northern Ireland playing in the NIFL Premiership. The club was founded in 1882 and plays its home games at the Oval in east Belfast. Club colours are red, green and black. Linfield and Glentoran are nicknamed Belfast's Big Two, as they have traditionally dominated local football in Northern Ireland since the demise of Belfast Celtic. The two play a league match on Boxing Day each year, which regularly attracts the largest attendance of the Irish League season.