Er bestaan 3 plaatsen met de naam Tvurditsa in Bulgarije.
Alle plaatsen in de wereld die "Tvurditsa" heten.
Novo Selo (9)
Slatina (8)
Eni Makhle (8)
Aleksandrovo (7)
Staro Selo (7)
Dryenovo (6)
Belitsa (6)
Krumovo (6)
Dryanovo (6)
Simeonovo (6)
Krushevo (6)
Dubrava (6)
Drenowo (6)
Ferdinandovo (6)
Svoboda (5)
Kruschewo (5)
Benkovski (5)
Polyana (5)
Banya (5)
Byelitsa (5)
Nikolaevo (5)
Kara Agach (5)
Nadezhda (5)
Chiflik (5)
Ferdinandowo (5)
Eni K'oy (5)
Gurkovo (5)
Zdravets (5)
Izvor (5)
Kirilovo (5)