Iii. Trida

III. Trida is the third tier of the Czech Republic's football league system. It is also known as the Moravian-Silesian Football League.

The league is made up of 16 teams, and each team plays each other twice, once at home and once away. The top two teams at the end of the season are promoted to II. Liga, and the bottom two teams are relegated to Divize A.

III. Trida was first established in 1993, following the dissolution of Czechoslovakia. The league has been won by a total of 13 different teams, with Sigma Olomouc being the most successful with 5 titles.