第一次伊普尔战役，亦可称作第一次法兰德斯战役(法语: 1re Bataille des Flandres 德语: Erste Flandernschlacht)。是第一次世界大战中为了争夺比利时战略城市伊普尔所发生的战役。无论是协约国或德国均将这里为必争之地，英国接受比利时国王阿尔贝一世的请求，希望能保住最后一个比利时的城市，保护英吉利海峡和远征军的补给线。法国希望守住伊普尔以防止侧翼被包抄，德国则试图从此地向法国加莱与滨海省分进军。

伊普尔战役突显出军队将领指挥上的问题，双方浪费众多兵力却皆没有取得决定性胜利的机会。特别是英国以往所信赖的海外远征军遭受严重损失，迫不得已而放弃传统的志愿制度，改采强制征兵制以补充兵员。

The First Battle of Ypres (19 October – 22 November) was a First World War battle fought around Ypres, in western Belgium during October and November 1914. The battle took place as part of the First Battle of Flanders (French:Première Bataille des Flandres German:Erste Flandernschlacht), in which German, French, Belgian and British armies fought from Arras in France to Nieuport on the Belgian coast, from 10 October to mid-November. The battles at Ypres began at the end of the Race to the Sea which involved attempts by the German and Franco-British armies to advance past the northern flank of their opponents. North of Ypres the fighting continued in the Battle of the Yser (16–31 October), fought between the German 4th Army and a largely Belgian force.