Teuchter [tʲu:xtər] is a Lowland Scots word originally used to describe a Scottish Highlander, in particular a Gaelic-speaking Highlander. Like most such cultural epithets, it can be seen as offensive, but is often seen as amusing by the speaker. The term is contemptuous, essentially describing someone seen to be uncouth and rural.
The word also shows up as cheuchter, tschooktir, chuchter, teuchtar, chookter but has no universally accepted orthography. From relative obscurity, it gained currency around 1910. 
There are three main theories on the etymology of the word:
- a purely Gaelic derivation from tuath [t̪ʰuə] "peasantry, tenantry" or deoch [tʲɔx] "drink" (borrowed into Scots as teuch) plus an agent-forming suffix -air or -adair
- a derivation from the Scots adjective teuch "physically or mentally strong, tough" plus a suffix
- a derivation from the Scots noun teuchit/teuchat "lapwing"
One folk etymology/urban myth is that during the First World War, many members of the Highland regiments were pipers. A book of sheet music for the pipes is called a "tutor", and when pronounced with the pre-aspiration of Gaelic accents when speaking English, this sounds like "teuchter".
Like other rural stereotypes, teuchters commonly feature in jokes (Billy Connolly has performed and recorded a sketch where a teuchter visiting the city marvels at a bus as "a hoose wi wheels") though such stories often end with the apparently naive teuchter triumphing through hidden wiliness.
- Oxford English Dictionary, second edition, 1989
- Robinson, Mairi, ed. (1985). The Concise Scots dictionary. Aberdeen University Press. ISBN 978-0-08-028491-0.
- "Dictionary of the Scots Language". Edinburgh University. Retrieved 2010-10-14.
- "Am facal 'teuchter' (Prògram Choinnich (BBC Gaelic radio broadcast))". Tobar an Dualchais. 1997-12-09. Retrieved 2010-10-14.
- "Arizona Irish Music Society". Azirishmusic.com. 1999-10-30. Archived from the original on 2010-02-19. Retrieved 2010-03-30.