Samba represents the Republic of the Congo national team and stated in an interview, saying: "Without them, I don't know where I would be today. Many people ask me why I do not have French nationality to have a chance to play with the France team. But it was the Congo team that gave me the opportunity to play soccer again when I needed it." He made his Congo debut as a 20-year-old on 5 September 2004 against Togo and played 61 minutes before being substituted, as the side lost 2–0. Samba made his second appearance for Congo a month later on 10 October 2004 against Zambia and played 45 minutes, as they lost 3–2.