Let's hear how people around the world name or used to name Russians.
We will start with the closest Russian friend and neighbor - Ukraine. Ukrainians (and Polish people) call Russians KATSAPs. This word is usually used in a negative tone. They say that there are two possible ways of the origins of the word. The first is that the word originated from Ukrainian for goat. Russians with their beards looked like goats to shaved Ukrainians. Another possible etymology of the word is Turkic language; Kasap translates as a bandit.
Another commonly used name for Russians among Ukrainians is Moskal.
In return Russians called Polish people psheki and Ukrainians - khokhly.
Koreans and Chinese called Russians mauchzhe which also reffered to the beard Russians liked to wear.
Germans called Russians Ivans, because Ivan was the most "truly Russian", and the most popular name. Even these days if you want to point out that a person is a simpleton, you can call him Vanya (Vanya is a diminutive for Ivan).