The Slovenia national junior handball team is the national under-20 handball team of Slovenia. Controlled by the Slovenian Handball Federation, that is an affiliate of the International Handball Federation IHF as well as a member of the European Handball Federation EHF, The team represents Slovenia in international matches.

The Slovenia U21 Handball Team is the national youth team representing Slovenia in international under-21 handball competitions. Known for their agility, tactical discipline, and emerging talent, the team serves as a vital stepping stone for young Slovenian players aspiring to reach the senior national team. Comprising promising athletes from various clubs across Slovenia, the Slovenia U21 team competes in European and world championships, showcasing their skills and dedication on the international stage. Their playing style emphasizes fast-paced offense, solid defense, and teamwork, reflecting Slovenia's strong handball tradition and commitment to developing future stars of the sport.