Actually, no. Einstein won the 1921 Nobel Prize in Physics "for his services to Theoretical Physics, and especially for his discovery of the law of the photoelectric effect" - not for relativity.

This is a common misconception. While relativity was Einstein's most revolutionary work, the Nobel Committee was hesitant about it at the time because it was still considered controversial and lacked the experimental confirmation they preferred. The photoelectric effect work (1905) was more experimentally verified and had clearer practical applications.

Interestingly, relativity is not even mentioned in his Nobel Prize citation.
