Plattdüütsch (Low German), an endangered and regional Germanic language descended from Old Saxon that is spoken in Northern Germany, the Eastern Netherlands, and in small communities throughout the world.
Livonian: The Finnic language Livoniandied out as the last speaker, Grizelda Kristina, died at the age of 103.
Yurok: Down to only 6 speakers at one point, the Yurok language is now taught in Northern California schools. Now, over 300 people have at least a basic knowledge of Yurok. Los Angeles Times
Cromarty fishfolk: The last speaker of the Scots dialect named Cromarty fishfolk, Bobby Hogg, passed away in October 2012; with him died the dialect. CNN
Bo: The last speaker of the Bo language, Boa Sr, died in early February 2010, bringing with her a 65,000-year-old language to the grave. Mail Online