五线笛鲷，俗名赤笔仔，为辐鳍鱼纲鲈形目鲈亚目笛鲷科的其中一个种。

本鱼分布于印度西太平洋区，包括毛里求斯、塞舌尔群岛、马尔代夫、阿曼湾、、斯里兰卡、印度、安达曼海、泰国、缅甸、马来西亚、菲律宾、印尼、琉球群岛、**、中国沿海、马里亚纳群岛、马绍尔群岛、瑙鲁、帕劳、密克罗尼西亚、新喀里多尼亚、澳洲、斐济群岛等海域。该物种的模式产地在日本。

The five-lined snapper or blue-striped snapper, Lutjanus quinquelineatus, is a species of snapper native to the Indian Ocean and the western Pacific Ocean. It is an inhabitant of coral reefs being found at depths from 2 to 40 m (6.6 to 131.2 ft). This species can reach 38 cm (15 in) in TL, though most do not exceed 30 cm (12 in). It is a commercially important species and is also sought after as a game fish. It can also be found in the aquarium trade.