The Estonia men's national under-18 basketball team is a national basketball team of Estonia, administered by the Estonian Basketball Association. It represents the country in international under-18 men's basketball competitions.
The Estonia men's national under-18 basketball team made its debut in the FIBA U18 European Championship in the early 1990s, following the country's reinstatement into FIBA in 1991 after regaining independence. The team has alternated between Division A and Division B of the continental competition, often serving as a springboard for players who later feature in the senior national team.
Estonia hosted the 2017 FIBA U18 European Championship Division B in Tallinn. The home team finished 3rd, narrowly missing out on promotion to Division A. The event was seen as an important showcase for Estonia's basketball infrastructure and rising generation of players.
Over the years, the U18 program has developed several players who later became key figures in Estonian basketball, including Maik-Kalev Kotsar, Henri Drell, and Kasper Suurorg.