A

• [+] Armenian-language operas (1 P)

C

• [+] Croatian-language operas (3 P)
• [+] Czech-language operas (1 C, 31 P)

D

• [+] Danish-language operas (6 P)

E

• [+] English-language operas (2 C, 400 P)

F

• [+] Finnish-language operas (10 P)
• [+] French-language operas (1 C, 369 P)

G

• [+] Georgian-language operas (1 P)
• [+] German-language operas (2 C, 233 P)

H

• [+] Hungarian-language operas (1 C, 10 P)

I

• [+] Italian-language operas (1 C, 432 P)

J

• [+] Japanese-language operas (3 P)

L

• [+] Latin-language operas (2 P)

M

• [+] Macedonian-language operas (1 P)
• [+] Multiple-language operas (15 P)

N

• [+] Norwegian-language operas (1 P)

P

• [+] Persian-language operas (1 P)
• [+] Polish-language operas (6 P)
• [+] Portuguese-language operas (3 P)

R

• [+] Romanian-language operas (1 P)
• [+] Russian-language operas (1 C, 84 P)

S

• [+] Sanskrit-language operas (1 P)

S cont.

• [+] Serbian-language operas (1 P)
• [+] Slovak-language operas (2 P)
• [+] Slovene-language operas (1 P)
• [+] Spanish-language operas (23 P)
• [+] Swedish-language operas (10 P)

T

• [+] Thai-language operas (1 P)
• [+] Turkish-language operas (1 P)

U

• [+] Ukrainian-language operas (4 P)

W

• [+] Welsh-language operas (1 P)

Y

• [+] Yiddish-language operas (5 P)