The Indiana Pacers have never won an NBA championship. They have reached the NBA Finals twice, once in 2000 and again in 2025, but did not win the title on those occasions. However, the Pacers were very successful in the American Basketball Association (ABA) before joining the NBA. They won three ABA championships in 1970, 1972, and 1973, making them a dynasty in the ABA era. To summarize:

• NBA Championships: 0
• ABA Championships: 3 (1970, 1972, 1973)

So, while they have three professional basketball championships in total, all of those were in the ABA, not in the NBA.