The ECO Cup was a football competition for members of Economic Cooperation Organization. Previously it was known as RCD Cup, RCD abbreviates Regional Corporation for Development and was an economic cooperation between Iran, Pakistan and Turkey from 1964 to 1979. A new organisation, ECO, was set up in 1985. In 1992, Afghanistan, Uzbekistan, Tajikistan, Turkmenistan, Kazakhstan, Kyrgyzstan and Azerbaijan joined ECO.

The countries that competed in one or more tournaments are Iran, Turkey, Pakistan, Kazakhstan, Kyrgyzstan, Tajikistan and Turkmenistan. Afghanistan and Uzbekistan never participated. Also Turkey did not participate in 1993 Tournament. 1993 was the last time this tournament was held.

RCD Cup from 1964 to 1974 was a three nation tournament and it had a league format structure. ECO Cup 1993 was a seven nation tournament with two groups for a group stage, followed by semi-finals and final. There was no 3rd place match.

For each tournament, the number of teams in each finals tournament (in brackets) are shown.