Yes, you can study in Europe without knowing a European language. A number of universities in Europe, like those in Germany, the Netherlands, Sweden, and France, have programs taught fully in English, mostly for master's degrees. The number of English-taught bachelor's programs is going up, too. Still, knowing the local language could make your daily life better, help you find a job, and make it easier to fit in. Some universities might also give language help or beginner courses as part of the program.