word_cloud_language
The GitHub repository from Saša Stamenković provides a nice list of all countries with names and ISO 3166-1 codes.

Available formats are:

  • Text
  • JSON
  • YAML
  • XML
  • HTML
    • Select
    • Flags
  • CSV
  • SQL
    • MySQL
    • PostgreSQL
    • SQLite
    • SQL Server
  • PHP

Github