丝鳍紫鱼（学名：Pristipomoides filamentosus），又称丝鳍姬鲷，为辐鳍鱼纲鲈形目鲈亚目笛鲷科紫鱼属的鱼类。分布印度太平洋区，从东非至夏威夷群岛、大溪地岛，北起日本南部，南迄澳洲东部、豪勋爵岛海域，栖息深度40-400公尺，本鱼眼间隔平坦，下颌稍突出，胸鳍长延伸至肛门，背面和侧面的颜色从褐色到薰衣草或红紫色，吻部和眼间隔狭窄具黄线和蓝点;背鳍及尾鳍边缘橙红色、淡蓝色或淡紫色，背鳍硬棘10枚;背鳍软条12枚;臀鳍硬棘3枚;臀鳍软条8枚，体长可达100公分，生活在岩石底质海域，会进行垂直迁徙，夜间觅食，属肉食性，以鱼类、甲壳类、端足类、海鞘等为食，为高经济价值的食用鱼及游钓鱼。该物种的模式产地在留尼汪。

Pristipomoides filamentosus, commonly known as the crimson jobfish, crimson snapper or Hawaiian pink snapper, is a species of snapper native to the Indian Ocean and into the Pacific Ocean as far east as Hawaii and Tahiti. They inhabit waters over rocky substrates at depths from 40 to 400 m (130 to 1,310 ft) seemingly preferring to remain between 180 and 270 m (590 and 890 ft). This species can reach a length of 100 cm (39 in), though most are around 50 cm (20 in). The greatest known weight for this species is 8.2 kg (18 lb). This species is very important to local commercial fisheries and is sought out as a game fish.