# 2006 Campionati Internazionali di Sicilia – Singles

In the 2006 Campionati Internazionali di Sicilia singles event, Igor Andreev was the defending champion, but did not participate.
Filippo Volandri won the title, defeating Nicolás Lapentti 5–7, 6–1, 6–3 in the final.

## Seeds

* Fernando Verdasco (quarterfinals)
* Filippo Volandri (champion)
* Gilles Simon (quarterfinals)
* Nicolás Almagro (semifinals, retired due to an ankle injury)
* Paul-Henri Mathieu (first round)
* Florian Mayer (withdrew due to a sore shoulder)
* Luis Horna (first round, retired due to a shoulder injury)
* Rubén Ramírez Hidalgo (semifinals)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 8 | Rubén Ramírez Hidalgo | 2 | 1 | | | | | |
| | Nicolás Lapentti | 6 | 6 | | | | | |
| | Nicolás Lapentti | 6 | 6 | | Nicolás Lapentti | 7 | 1 | 3 |
| | | | | 2 | Filippo Volandri | 5 | 6 | 6 |
| 4 | Nicolás Almagro | 0 | 1$^r$ | 2 | Filippo Volandri | 5 | 6 | 6 |
| 2 | Filippo Volandri | 6 | 2 | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | F Verdasco | 5 | 6 | 6 | | | | | | | | | | | | | |
| | D Bracciali | 7 | 4 | 4 | 1 | F Verdasco | 6 | 6 | | | | | | | | | |
| | J Hájek | 6 | 7$^7$ | | | J Hájek | 2 | 2 | | | | | | | | | |
| PR | B Ulihrach | 3 | 6$^2$ | | | | | | | 1 | F Verdasco | 3 | 4 | | | | |
| WC | G Naso | 1 | | | | | | | | 8 | R Ramírez Hidalgo | 6 | 6 | | | | |
| | J Vaněk | 2$^r$ | | | WC | G Naso | 2 | 2 | | | | | | | | | |
| | A di Mauro | 6$^7$ | 3 | | 8 | R Ramírez Hidalgo | 6 | 6 | | | | | | | | | |
| 8 | R Ramírez Hidalgo | 7$^9$ | 6 | | | | | | | | | | | 8 | R Ramírez Hidalgo | 2 | 1 |
| 3 | G Simon | 6 | 6$^6$ | 6 | | | | | | | | | | | N Lapentti | 6 | 6 |
| | A Seppi | 0 | 7$^8$ | 2 | 3 | G Simon | 7 | 6 | | | | | | | | | |
| PR | M Zabaleta | 7 | 3 | 6 | PR | M Zabaleta | 5 | 3 | | | | | | | | | |
| | O Patience | 5 | 6 | 3 | | | | | | 3 | G Simon | 0 | 1 | | | | |
| Q | JA Marín | 6$^3$ | 3 | | | | | | | | N Lapentti | 6 | 6 | | | | |
| WC | F Fognini | 7$^7$ | 6 | | WC | F Fognini | 6 | 1 | 6$^4$ | | | | | | | | |
| | N Lapentti | 3 | 6 | 6 | | N Lapentti | 2 | 6 | 7$^7$ | | | | | | | | |
| 5 | P-H Mathieu | 6 | 2 | 3 | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| LL | Ó Hernández | 6 | 6 | | | | | | | | | | | | | | |
| | P Kohlschreiber | 1 | 1 | | LL | Ó Hernández | 6 | 4 | 4 | | | | | | | | |
| | M Vassallo Argüello | 2 | 6 | 7 | | M Vassallo Argüello | 2 | 6 | 6 | | | | | | | | |
| Q | J-P Guzmán | 6 | 3 | 5 | | | | | | | M Vassallo Argüello | 2 | 2 | | | | |
| Q | F Čermák | 6 | 2 | 7 | | | | | | 4 | N Almagro | 6 | 6 | | | | |
| | A Pavel | 3 | 6 | 5 | Q | F Čermák | 1 | 2 | | | | | | | | | |
| | O Marach | 1 | 4 | | 4 | N Almagro | 6 | 6 | | | | | | | | | |
| 4 | N Almagro | 6 | 6 | | | | | | | | | | | 4 | N Almagro | 0 | 1$^r$ |
| 7 | L Horna | 2$^r$ | | | | | | | | | | | | 2 | F Volandri | 6 | 2 |
| | A Montañés | 5 | | | | A Montañés | 6 | 6 | | | | | | | | | |
| | P Starace | 6 | 6 | | | P Starace | 2 | 2 | | | | | | | | | |
| Q | F Luzzi | 1 | 2 | | | | | | | | A Montañés | 4 | 2 | | | | |
| | S Roitman | 6 | 6 | | | | | | | 2 | F Volandri | 6 | 6 | | | | |
| WC | F Aldi | 0 | 1 | | | S Roitman | 7$^8$ | 1 | 4 | | | | | | | | |
| | G García López | 6$^3$ | 6 | 3 | 2 | F Volandri | 6$^6$ | 6 | 6 | | | | | | | | |
| 2 | F Volandri | 7$^7$ | 3 | 6 | | | | | | | | | | | | | |