Uganda are the last of 20 teams to qualify for the tournament in West Indies and the United States, joining Namibia, who secured qualification for the World Cup earlier this week.
This will be Uganda's first-ever appearance at an ICC World Cup. They become the fifth African nation to feature at a T20 World Cup.
Uganda's victory over Rwanda also ensured that Zimbabwe, who have played at six of the eight editions of the World Cup, missed the cut.