Kálvin tér (English: Calvin Square) is a major square and intersection in the city center of Budapest, the capital of Hungary. It was named after the French Protestant Reformer John Calvin (Kálvin János in Hungarian) due to the large Reformed Church located there. Being a major thoroughfare and locality, the square is a major transport hub with tram, bus, and trolleybus routes serving the square. The Kálvin tér station on the M3 (North-South) line, and M4 of the Budapest Metro is located here. The Hungarian National Museum is near Kálvin tér.