Uzbekistan Pro-B League (Uzbek: O'zbekiston Pro-B ligasi / Ўзбекистон Про-Б Лигаси; Russian: Про лига Б Узбекистана) is the third level (after the Super League and Pro League) football league in Uzbekistan Since the foundation in 2018 and until was the «Uzbekistan Pro-B League» (Uzbek: O'zbekiston Pro-B ligasi / Ўзбекистон Про-Б лигаси; Russian: Про лига-Б Узбекистана).

On 21 November 2017 according to the UzPFL management decision the Uzbekistan First League was officially renamed to Uzbekistan Pro-B League starting from the 2018 season.

The winner of the Uzbekistan Pro-B League receives the permit in the Uzbekistan Pro League, and the club took third place in the Pro League gets a place in the play-offs, consisting of two matches (home and away) where his opponent will be the Pro-B League club, who took there the penultimate eleventh place.

The winner of the playoffs gets a chance in Pro League Uzbekistan, and the losing club will start the new season in the Pro-B League Uzbekistan.

The clubs finishing in last place in the Pro-B League, will start the season in the Uzbekistan Second League — the fourth level and the importance of football in the country.