An Introduction to Old Norse is a textbook written by E. V. Gordon, arising from his teaching at the University of Leeds and first published in 1927 in Oxford at The Clarendon Press.

According to Todd Krause of the Linguistics Research Centre at the University of Texas, the work is "still considered the standard reference, though often extremely daunting for self-study.

In it, Gordon draws comparisons to other languages and texts of the Middle Ages such as the Old English epic poem Beowulf.

The grammar portion of the text is written with the understanding that the reader would be familiar with linguistics, particularly those of Germanic languages.

Verb conjugations are given by stem class, and Gordon often gives the historical reasons for particular changes in word form.