| Club: | Queensland Roar FC |
| Season: | 2005–06 |
| Manager: | Miron Bleiberg |
| Mgrtitle: | Manager |
| Chairman: | John Ribot |
| Chrtitle: | Chairman |
| League: | A-League |
| League Result: | 6th |
| Cup1: | Pre-Season Cup |
| Cup1 Result: | Group Stage |
| Cup2: | World Club Qualifiers |
| Cup2 Result: | Round 1 |
| Biggest Win: | 5–0 v Newcastle Jets |
| Biggest Loss: | 1–3 v Sydney FC |
| League Topscorer: | Alex Brosque – 8 Goals |
| Highest Attendance: | 23,142 v Sydney FC |
| Lowest Attendance: | 8,607 v New Zealand Knights |
| Average Attendance: | 14,785 |
| Nextseason: | 2006–07 |
| Pattern B1: | _qldroar |
| Leftarm1: | FF6700 |
| Rightarm1: | FF6700 |
| Shorts1: | 0000B8 |
| Socks1: | 660000 |
| Pattern La2: | _orangebend |
| Pattern B2: | _qldroar0506a |
| Pattern Ra2: | _orangebend |
| Leftarm2: | FFFFFF |
| Body2: | FFFFFF |
| Rightarm2: | FFFFFF |
| Shorts2: | FF6600 |
| Socks2: | FFFFFF |
The 2005–06 Queensland Roar season would mark the first season for the Hyundai A-League. Queensland Lions withdrew their first team from the QLD State League and entered it in the new fledgling competition as ‘The Roar’ having been accepted by Football Federation Australia to take part as the sole representative for Queensland after no other club was able to raise the required funds to participate. The Queensland Roar were previously playing in the Brisbane Premier League under the name Queensland Lions.
The Queensland Roar made their A-League debut against the now-defunct New Zealand Knights, in a 2–0 win in front of over twenty thousand fans at their home ground of Suncorp Stadium. Unfortunately, the Roar were mediocre in the next rounds and after a series of draws and losses would not record their next win until Round 6 against the Newcastle Jets. The rest of the 2005–06 season would follow in a similar fashion as after 21 rounds of the regular season the Roar finished with seven wins, seven draws and seven losses, placing them sixth on the ladder from eight teams.It has been said the Roars first season in the inaugural A-League was more successful off-field than on.
The club was the first to have 100,000 spectators pass through the gates and overall had the second highest attendance for the season (148,609) and despite failing to qualify for the finals, the club's home attendance was the second highest in the opening season (average 14,860 a game). Despite the clubs average win–loss record the club had a number of highlights throughout the year, notably the season's equal highest scoring win (5–0 over the Newcastle Jets in Round 20) and striker Alex Brosque being one of four A-League players awarded the Reebok Golden Boot Award for Top Scorer of the Year with 8 goals.
Round 1----Round 2----Round 3----Round 4----Round 5----Round 6----Round 7----Round 8----Round 9----Round 10----Round 11----Round 12----Round 13----Round 14----Round 15----Round 16----Round 17----Round 18----Round 19----Round 20----Round 21----