Sydney Goodsir Smith (26 October 1915 - 15 January 1975) was a New Zealand-Scottish poet, artist, dramatist and novelist. He wrote poetry in Scots (Lallans), and was a major figure of the Scottish Renaissance.

He was born in Wellington, New Zealand, and moved to Edinburgh with his family in 1928. He was at school at Malvern College. He went to Edinburgh University to study medicine, but abandoned that, and started to read history at Oriel College, Oxford; whence he was expelled, but managed to complete a degree.

His first poetry collection of many, Skail Wind, was published in 1941. Carotid Cornucopius (1947) was a comic novel about Edinburgh. His play The Wallace formed part of the 1960 Edinburgh Festival.

Under the Eildon tree (1948), a long poem in 24 parts, is considered by many his finest work; The Grace of God and the Meth-Drinker is a much-anthologised poem. Kynd Kittock's land (1964) was a commission of a poem to be televised by the BBC.

He died in Edinburgh. He is now commemorated in The Makars' Court there.