斯里兰卡国旗呈横长方形，长与宽之比约为2∶1。旗面四周的黄色边框和框内靠左侧的黄色竖条，将整个旗面划分为左右结构的框架。左边框内是绿色和橙色的两个竖长方形;右侧为咖啡色长方形，中间是一头紧握战刀的黄色狮子，长方形的四角各有一片菩提树叶。

• 中文名称 斯里兰卡国旗
• 外文名称 Flag of Sri Lanka
• 形状 长方形
• 比例 2∶1
• 主要颜色 黄色、咖啡色

中文介绍

　　咖啡色代表僧伽罗族，占全国人口的72%;橙、绿色代表少数民族;黄色边框象征人民追求光明和幸福。菩提树叶表示对佛教的信仰，而其形状又和该国国土轮廓相似;狮子图案标志着该国的古称"狮子国"，也象征刚强和勇敢。

英文介绍

　　Flag Description: yellow with two panels; the smaller hoist-side panel has two equal vertical bands of green (hoist side) and orange; the other larger panel depicts a yellow lion holding a sword on a dark red rectangular field that also displays a yellow bo leaf in each corner; the yellow field appears as a border around the entire flag and extends between the two panels; the lion represents Sinhalese ethnicity, the strength of the nation, and bravery; the sword demonstrates the sovereignty of the nation; the four bo leaves – symbolizing Buddhism and its influence on the country – stand for the four virtues of kindness, friendliness, happiness, and equanimity; orange signifies Sri Lankan Tamils, green the Sri Lankan Moors; dark red represents the European Burghers, but also refers to the rich colonial background of the country; yellow denotes other ethnic groups; also referred to as the Lion Flag