Unified Canadian Aboriginal Syllabics

The Unified Canadian Aboriginal Syllabics (UCAS) is a family of syllabic writing systems used for several Indigenous languages of Canada, including Cree, Ojibwe, Oji-Cree, and Inuktitut. The original system was designed in the 1840s by the Methodist missionary James Evans for Cree.

The script represents syllables using simple geometric shapes rotated to indicate the vowel component. Consonant-final syllables use smaller 'finals.' The script spread rapidly through the vast boreal forests of Canada and remains in active use today. It is recognized by the Canadian government and used in official signage in Nunavut.