Grid
| Row | Inside | Middle | Outside |
|---|---|---|---|
| 1 | Rick Mears | A.J. Foyt | Mario Andretti |
| 2 | Bobby Rahal | Michael Andretti | Al Unser, Jr. |
| 3 | John Andretti | Jim Crawford | Danny Sullivan |
| 4 | Eddie Cheever | Jeff Andretti | Scott Goodyear |
| 5 | Gary Bettenhausen | Arie Luyendyk | Emerson Fittipaldi |
| 6 | Kevin Cogan | Stan Fox | Mike Groff |
| 7 | Scott Brayton | Tony Bettenhausen, Jr. | Bernard Jourdain |
| 8 | Geoff Brabham | Buddy Lazier | Hiro Matsushita |
| 9 | John Paul, Jr. | Tero Palmroth | Scott Pruett |
| 10 | Roberto Guerrero | Willy T. Ribbs | Dominic Dobson |
| 11 | Randy Lewis | Pancho Carter | Gordon Johncock |
- Gary Bettenhausen was the fastest qualifier. However, he qualified on the second day of time trials, and thus, was ineligible for the pole position. He lined up as the fastest second day qualifier, behind the 12 drivers who qualified on the first day.
Read more about this topic: 1991 Indianapolis 500