2006 National Indoor Football League season

The 2006 National Indoor Football League season was the fifth season of the National Indoor Football League. The league champions were the Billings Outlaws, who defeated the Fayetteville Guard in Indoor Bowl VI.

Standings

 * Green indicates clinched playoff berth
 * Purple indicates division champion
 * Grey indicates best conference record

Round 1
Atlantic Conference
 * Lakeland 70, Montgomery 62
 * Cincinnati 0, Osceola 0 (Cincinnati wins by forfeit)

Pacific Conference
 * Katy 55, Beaumont 21
 * Tri-Cities 45, Wyoming 20

Quarterfinals
Atlantic Conference
 * River City 48, Cincinnati 30
 * Fayetteville 44, Lakeland 18

Pacific Conference
 * Rapid City 60, Katy 38
 * Billings 48, Tri-Cities 21

Semifinals
Atlantic Conference
 * Fayetteville 72, River City 70 (OT)

Pacific Conference
 * Billings 62, Rapid City 54

Indoor Bowl VI

 * Billings 59, Fayetteville 44