# 2024 Iași Open – Men's singles

Hugo Gaston was the defending champion but chose not to defend his title.
Hugo Dellien won the title after defeating Javier Barranco Cosano 6–1, 6–1 in the final.

## Seeds

* Camilo Ugo Carabelli (second round)
* Albert Ramos Viñolas (first round)
* Juan Manuel Cerúndolo (second round)
* Román Andrés Burruchaga (first round)
* Nicolas Moreno de Alboran (first round)
* Hugo Dellien (champion)
* Gustavo Heide (first round)
* Enzo Couacaud (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
* NG = Next Gen Accelerator Program entrant

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 6 | Hugo Dellien | 7$^7$ | 6 | | | | |
| | Daniel Vallejo | 6$^4$ | 2 | | | | |
| | Daniel Vallejo | 6$^4$ | 2 | 6 | Hugo Dellien | 6 | 6 |
| | | | | | Javier Barranco Cosano | 1 | 1 |
| 8 | Enzo Couacaud | 6$^5$ | 5 | | Javier Barranco Cosano | 1 | 1 |
| | Javier Barranco Cosano | 7$^7$ | 7 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | C Ugo Carabelli | 7 | 6 | | | | | | | | | | | | | | |
| | J Veselý | 5 | 3 | | 1 | C Ugo Carabelli | 6$^3$ | 2 | | | | | | | | | |
| Q | Radu Mihai Papoe | 1 | 2 | | | V Royer | 7$^7$ | 6 | | | | | | | | | |
| | V Royer | 6 | 6 | | | | | | | V Royer | 4 | 7$^7$ | 3 | | | | |
| Q | Sebastian Gima | 0 | 6$^6$ | | | | | | 6 | H Dellien | 6 | 6$^5$ | 6 | | | | |
| | A Shelbayh | 6 | 7$^8$ | | | A Shelbayh | 4 | 4 | | | | | | | | | |
| LL | R Strombachs | 5 | 6 | 4 | 6 | H Dellien | 6 | 6 | | | | | | | | | |
| 6 | H Dellien | 7 | 4 | 6 | | | | | | | | | | 6 | H Dellien | 7$^7$ | 6 |
| 3 | JM Cerúndolo | 6 | 6 | | | | | | | | | | | | AD Vallejo | 6$^4$ | 2 |
| Q | I Snițari | 4 | 3 | | 3 | JM Cerúndolo | 3 | 3 | | | | | | | | | |
| | AD Vallejo | 6 | 6 | | | AD Vallejo | 6 | 6 | | | | | | | | | |
| Q | AL Lingua Lavallén | 4 | 4 | | | | | | | AD Vallejo | 6 | 6 | | | | | |
| Q | M Vrbenský | 6 | 3 | 1 | | | | | | M Landaluce | 2 | 1 | | | | | |
| | M Landaluce | 1 | 6 | 6 | | M Landaluce | 6 | 6 | | | | | | | | | |
| WC | GA Boitan | 7$^7$ | 3 | 6 | WC | GA Boitan | 4 | 3 | | | | | | | | | |
| 5 | N Moreno de Alboran | 6$^5$ | 6 | 4 | | | | | | | | | | | | | |

### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | E Couacaud | 4 | 6 | 6 | | | | | | | | | | | | | | |
| | N Fatić | 6 | 3 | 4 | 8 | E Couacaud | 6 | 5 | 6 | | | | | | | | | |
| | M Janvier | 3 | 6 | 3 | | D Svrčina | 0 | 7 | 2 | | | | | | | | | |
| | D Svrčina | 6 | 3 | 6 | | | | | | 8 | E Couacaud | 6$^4$ | 6 | 7$^{12}$ | | | | |
| | D Popko | 6 | 6 | | | | | | | | D Popko | 7$^7$ | 2 | 6$^{10}$ | | | | |
| | M Dellien | 4 | 2 | | | D Popko | 7 | 6 | | | | | | | | | | |
| WC | C Crețu | 6 | 6 | | WC | C Crețu | 5 | 3 | | | | | | | | | | |
| 4 | RA Burruchaga | 4 | 3 | | | | | | | | | | | | 8 | E Couacaud | 6$^5$ | 5 |
| 7 | G Heide | 7$^9$ | 2 | 3 | | | | | | | | | | | | J Barranco Cosano | 7$^7$ | 7 |
| Alt | V Sachko | 6$^7$ | 6 | 6 | Alt | V Sachko | 4 | 4 | | | | | | | | | | |
| | J Barranco Cosano | 6 | 6 | | | J Barranco Cosano | 6 | 6 | | | | | | | | | | |
| WC | ND Ionel | 1 | 2 | | | | | | | | J Barranco Cosano | 7$^7$ | 6 | | | | | |
| Q | B Bobrov | 7$^7$ | 5 | | | | | | | | JP Ficovich | 6$^1$ | 3 | | | | | |
| Alt | FC Jianu | 6$^1$ | 2$^r$ | | Q | B Bobrov | 6 | 1 | 2 | | | | | | | | | |
| | JP Ficovich | 7$^8$ | 6 | | | JP Ficovich | 4 | 6 | 6 | | | | | | | | | |
| 2 | A Ramos Viñolas | 6$^6$ | 4 | | | | | | | | | | | | | | | |