内湖（Lough Neagh），又译内伊湖，是英国最大的湖泊，位于北爱尔兰地区中部，面积388平方公里。在整个西欧，内湖的面积也可排到第三位，仅次于日内瓦湖和博登湖。

• 蒂龙郡附近的水域

• 阿德莫尔

• 安特里姆郡

• 安特里姆郡境内的内伊湖

• 阿马郡的水域

• 在伦敦德里郡的内伊湖

Lough Neagh, sometimes Loch Neagh, (pronounced /ˌlɒx ˈneɪ/, lokh nay) is a freshwater lake in Northern Ireland. The largest lake by area in the British Isles, it supplies 40% of Northern Ireland's water. Its name comes from Irish:Loch nEachach, meaning "Lake of Eachaidh", although today it is usually spelt Loch nEathach (Irish: [ɫ̪ɔx ˈn̠ʲahax]) in Irish. The lough is owned by the Earl of Shaftesbury.