A

• [+] Albanian language (4 C, 16 P)
• [+] Anatolian languages (6 C, 8 P)
• [+] Armenian languages (1 C, 12 P)

B

• [+] Balto-Slavic languages (3 C, 5 P)

C

• [+] Celtic languages (11 C, 15 P)

D

• [+] Dacian language (5 P)

E

• [+] Endangered Indo-European languages (5 C, 33 P)

G

• [+] Germanic languages (10 C, 29 P)
• [+] Greek language (16 C, 49 P)

H

• [+] Hittite language (2 C, 5 P)

I

• [+] Indo-European language stubs (1 C, 353 P)
• [+] Indo-European multilingual support templates (5 C, 4 P)
• [+] Indo-Iranian languages (6 C, 3 P, 1 F)
• [+] Italic languages (6 C, 1 P)

T

• [+] Thracian language (4 P)

• Indo-European languages

*

• List of Indo-European languages

A

• Albanian language

B

• Proto-Baltic language
• Balto-Slavic languages
• Barbari (language)
• Brionnais-Charolais
• British language (Celtic)

C

• Celtic languages
• Centum-Satem isogloss

G

• Germanic languages
• Graeco-Armenian
• Graeco-Aryan

I

• Illyrian languages
• Proto-Indo-Iranian language
• Italo-Celtic

L

• Liburnian language
• Ligurian language (ancient)

M

• Ancient Macedonian language
• Messapian language

M cont.

• Modern Indo-European

P

• Paionian language
• Paleo-Balkan languages
• Pashto language
• Phrygian language
• Proto-Iranian

S

• Sicel language

T

• Tocharian languages

V

• Venetic language