The Pacers' logo has always been a P with a basketball in it. From 1977-1990, the logo included a hand.
1977-1990: A blue P with a yellow basketball as the hole, with a white hand holding it.
1991-2005: In 1991, the Pacers removed the hand and "INDIANA" from the wordmark. The basketball is updated too.
2006-present: Same as before except with a new font and outlined in silver.
2006-present: The primary logo without the wordmark.
2006-present: A yellow circle outlined in silver with "INDIANA PACERS" curving around the circle.
1991-2005: "Indiana Pacers" stacked in blue.
2006-present: "Pacers" in blue.
2006-present: "PACERS" in blue, outlined in yellow.