| 2009 Knoxville Challenger | |
|---|---|
| Date | 9–15 November |
| Edition | 6th |
| Surface | Hard |
| Location | Knoxville, United States |
| Champions | |
| Singles | |
 Taylor Dent | |
| Doubles | |
 Martin Emmrich /  Andreas Siljeström | |
The 2009 Knoxville Challenger was a professional tennis tournament played on indoor hard courts. It was the sixth edition of the tournament which was part of the 2009 ATP Challenger Tour. It took place in Knoxville, United States between 9 and 15 November 2009.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| USA | Wayne Odesnik | 83 | 1 |
| USA | Michael Russell | 86 | 2 |
| USA | Taylor Dent | 104 | 3 |
| USA | Kevin Kim | 105 | 4 |
| USA | Jesse Levine | 109 | 5 |
 IND | Somdev Devvarman | 116 | 6 |
 RSA | Kevin Anderson | 120 | 7 |
| USA | Ryan Sweeting | 147 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Taylor Dent def. 
Ilija Bozoljac, 6–3, 7–6(6)
Martin Emmrich / Andreas Siljeström def. Raven Klaasen / Izak van der Merwe, 7–5, 6–4
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