The 2018-19 season was Georges Niang's third year in the Association. The 6-foot-9 forward appeared in 59 games for the Jazz. It was a significant boost for Niang after playing in only 32 NBA contests during his first two seasons. In 2018-19, Niang also appeared in three games for the G League Salt Lake City Stars. Niang played in Utah's first 14 games, averaging eight minutes of run per tilt. On Oct. 28, he scored a career-high 13 points during a win over Dallas. During December, Niang would see a boost in playing time via three games with the SLC Stars. In the G League, he'd deliver 21.0 points and 5.0 rebounds over 31 minutes per contest. In January, Niang provided steady bench support for the Jazz, appearing in 16 straight games from Jan. 7 to Feb. 9. After a brief string of DNP's, Niang would then appear in 17 of Utah's last 18 games. That run would include a new career high of 16 points during an Apr. 7 loss to the Lakers. He'd end the regular season with yet another career high of 24 points in a loss to the Clippers. Niang played in all five of Utah's playoff games, generating 4.4 points and 2.8 boards over 11 minutes per game. Niang's Jazz were eliminated by Houston in the first of the playoffs.

Niang continued to learn the NBA game in his sophomore season with the Jazz organization. He appeared in nine games and scored four points in a March 13 matchup against the Pistons. Niang spent the bulk of the season in the G-League, where he played 41 games and averaged almost 20 points per contest. Niang was first allocated by the Utah organization to the Santa Cruz Warriors, Golden State's G-League affiliate. He scored early and often with the Warriors, averaging 18 points and almost 7 rebounds per game in 26 contests. He was then shipped over to the Salt Lake City Stars, Utah's new affiliate. In fifteen games with the Stars, Niang averaged 22 points and 6.8 rebounds.

Niang was selected by the Indiana Pacers in the 2nd round (50th pick) of the 2016 NBA Draft. He made his NBA debut against Brooklyn on Oct. 28, grabbing a rebound in just under two minutes of play. The next night against Chicago, he scored four points while grabbing two boards in 16 minutes. Against Brooklyn on Nov. 25, Niang scored a season-high five points and recorded his first career steal. Niang also spent time in the D-League. He appeared in six games for the Fort Wayne Mad Ants, averaging 19.0 points and 7.2 rebounds while surrounded by NBA-caliber talent such as Rakeem Christmas and Marquis Teague. His best D-League game occurred Apr. 1, when Niang posted 32 points, 16 rebounds, five assists and a steal during a win over Canton. At the NBA level, Niang appeared in 23 games for the Pacers and averaged 4.0 minutes per contest. The Pacers made the postseason that year, but Niang did not get to make a playoff appearance.