Group of Fifteen Members

1. Algeria
2. Argentina
3. Brazil
4. Chile
5. Egypt
6. India
7. Indonesia
8. Islamic Republic of Iran
9. Jamaica
10. Kenya
11. Malaysia
12. Mexico
13. Nigeria
14. Senegal
15. Sri Lanka
16. Bolivarian Republic of Venezuela
17. Zimbabwe

(Yes, there are 17 members of the Group of 15 as of August 2018.
The group membership has changed over time,
but it has kept the name.)