《一闪一闪亮晶晶》（英语：Twinkle, Twinkle, Little Star），又译《一闪一闪小星星》或称《小星星》，是一首相当著名的英国儿歌，旋律出自于法国民谣《妈妈请听我说》（法语：Ah! vous dirai-je, Maman），歌词则出自于珍·泰勒（Jane Taylor）的英文诗《小星星》（The Star）。后莫扎特依此创作了著名的《小星星变奏曲》。此诗第一次出版于1806年，收录在珍与其姊安·泰勒（Ann Taylor）的合选集《Rhymes for the Nursery》中。

"Twinkle, Twinkle, Little Star" is a popular English lullaby. The lyrics are from an early 19th-century English poem by Jane Taylor, "The Star". The poem, which is in couplet form, was first published in 1806 in Rhymes for the Nursery, a collection of poems by Taylor and her sister Ann. It is sung to the tune of the French melody Ah! vous dirai-je, maman, which was published in 1761 and later arranged by several composers including Mozart with Twelve Variations on "Ah vous dirai-je, Maman". The English lyrics have five stanzas, although only the first is widely known. It has a Roud Folk Song Index number of 7666.