# 2024 Internazionali di Tennis Città di Trieste – Singles

Hugo Gaston was the defending champion but chose not to defend his title.
Federico Agustín Gómez won the title after defeating Tomás Barrios Vera 6–1, 6–2 in the final.

## Seeds

* Richard Gasquet (first round)
* Francesco Passaro (first round)
* Titouan Droguet (quarterfinals)
* Andrea Pellegrino (first round, retired)
* Benoît Paire (first round)
* Tseng Chun-hsin (first round, retired)
* Ugo Blanchet (second round)
* Oriol Roca Batalla (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 |
| | Tomás Barrios Vera | 6 | 6 | | | | |
| 8 | Oriol Roca Batalla | 4 | 2 | | | | |
| 8 | Oriol Roca Batalla | 4 | 2 | | Tomás Barrios Vera | 1 | 2 |
| | | | | Alt | Federico Agustín Gómez | 6 | 6 |
| | Henrique Rocha | 3 | 4 | Alt | Federico Agustín Gómez | 6 | 6 |
| Alt | Federico Agustín Gómez | 6 | 6 | | | | |

### 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 | R Gasquet | 4 | 2 | | | | | | | | | | | | | | |
| Alt | Samuel Vincent Ruggeri | 6 | 6 | | Alt | S Vincent Ruggeri | 2 | 6 | 4 | | | | | | | | |
| | A Andreev | 4 | | | | A Andreev | 6 | 4 | 6 | | | | | | | | |
| Q | Svyatoslav Gulin | 1$^r$ | | | | | | | | | A Andreev | 2 | 0$^r$ | | | | |
| | T Barrios Vera | 6 | 7 | | | | | | | | T Barrios Vera | 6 | 1 | | | | |
| WC | F Arnaboldi | 2 | 5 | | | T Barrios Vera | 6 | 6 | | | | | | | | | |
| Q | J Berrettini | 6 | 3 | 1 | Q | J Berrettini | 3 | 0 | | | | | | | | | |
| 6 | C-h Tseng | 4 | 6 | 0$^r$ | | | | | | | | | | | T Barrios Vera | 6 | 6 |
| 3 | T Droguet | 6 | 7 | | | | | | | | | | | 8 | O Roca Batalla | 4 | 2 |
| Alt | G Fonio | 3 | 5 | | 3 | T Droguet | 6 | 5 | 6 | | | | | | | | |
| Q | Carlos López Montagud | 3 | 5 | | | S Travaglia | 3 | 7 | 4 | | | | | | | | |
| | S Travaglia | 6 | 7 | | | | | | | 3 | T Droguet | 5 | 4 | | | | |
| | G Bueno | 6 | 6 | | | | | | | 8 | O Roca Batalla | 7 | 6 | | | | |
| WC | Lorenzo Carboni | 1 | 4 | | | G Bueno | 1 | 7$^7$ | 2 | | | | | | | | |
| | N Sánchez Izquierdo | 3 | 2 | | 8 | O Roca Batalla | 6 | 6$^5$ | 6 | | | | | | | | |
| 8 | O Roca Batalla | 6 | 6 | | | | | | | | | | | | | | |

### 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 |
| 5 | B Paire | 2 | 6 | 6$^4$ | | | | | | | | | | | | | |
| Q | Alessandro Pecci | 6 | 4 | 7$^7$ | Q | A Pecci | | | | | | | | | | | |
| Q | Andrea Guerrieri | 5 | 6 | 3 | | H Rocha | w/o | | | | | | | | | | |
| | H Rocha | 7 | 3 | 6 | | | | | | | H Rocha | 6 | 6 | | | | |
| | J Faria | 4 | 2 | | | | | | | | F Maestrelli | 2 | 1 | | | | |
| Q | Dušan Obradović | 6 | 6 | | Q | D Obradović | 7$^7$ | 1 | 0 | | | | | | | | |
| | F Maestrelli | 3 | 7 | 0 | | F Maestrelli | 6$^4$ | 6 | 6 | | | | | | | | |
| 4 | A Pellegrino | 6 | 5 | 0$^r$ | | | | | | | | | | | H Rocha | 3 | 4 |
| 7 | U Blanchet | 6 | 3 | 6 | | | | | | | | | | Alt | FA Gómez | 6 | 6 |
| | Z Piros | 3 | 6 | 1 | 7 | U Blanchet | 4 | 2 | | | | | | | | | |
| | A Kachmazov | 6$^3$ | 6$^4$ | | Alt | FA Gómez | 6 | 6 | | | | | | | | | |
| Alt | FA Gómez | 7$^7$ | 7$^7$ | | | | | | | Alt | FA Gómez | 6 | 6 | | | | |
| WC | M Cecchinato | 6$^8$ | 6$^3$ | | | | | | | | E Dalla Valle | 3 | 4 | | | | |
| | V Gaubas | 7$^{10}$ | 7$^7$ | | | V Gaubas | 6$^5$ | 2 | | | | | | | | | |
| | E Dalla Valle | 6 | 6 | | | E Dalla Valle | 7$^7$ | 6 | | | | | | | | | |
| 2 | F Passaro | 2 | 3 | | | | | | | | | | | | | | |