| Singles | |
|---|---|
| 2023 Internazionali di Tennis Città di Vicenza | |
| Champion |  Francisco Comesaña |
| Runner-up |  Pablo Llamas Ruiz |
| Score | 3–6, 6–2, 6–2 |
Andrea Pellegrino was the defending champion [1] but chose not to defend his title.
Francisco Comesaña won the title after defeating Pablo Llamas Ruiz 3–6, 6–2, 6–2 in the final.
Francesco Passaro (semifinals) Luca Nardi (quarterfinals)
Vít Kopřiva (first round) Riccardo Bonadio (first round) Franco Agamenone (first round) Mattia Bellucci (second round)
Kimmer Coppejans (first round)
Sho Shimabukuro (first round)| Semifinals | Final | ||||||||||||
| 1 | Francesco Passaro | 66 | 3 | ||||||||||
| Alt | Francisco Comesaña | 78 | 6 | ||||||||||
| Alt | Francisco Comesaña | 3 | 6 | 6 | |||||||||
| Pablo Llamas Ruiz | 6 | 2 | 2 | ||||||||||
| Q | Román Andrés Burruchaga | 3 | 0 | ||||||||||
| Pablo Llamas Ruiz | 6 | 6 | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | F Passaro | 7 | 6 | ||||||||||||||||||||||||
 M Neuchrist | 5 | 3 | 1 | F Passaro | 6 | 1 | 77 | ||||||||||||||||||||
 ND Ionel | 6 | 6 | ND Ionel | 3 | 6 | 62 | |||||||||||||||||||||
| Q |  N Fatić | 4 | 4 | 1 | F Passaro | 6 | 6 | ||||||||||||||||||||
| M Gigante | 6 | 1 | 1 | S Rodríguez Taverna | 3 | 4 | |||||||||||||||||||||
| S Rodríguez Taverna | 1 | 6 | 6 | S Rodríguez Taverna | 6 | 79 | |||||||||||||||||||||
 E Donskoy | 3 | 3 | 6 | M Bellucci | 3 | 67 | |||||||||||||||||||||
| 6 | M Bellucci | 6 | 6 | 1 | F Passaro | 66 | 3 | ||||||||||||||||||||
| 3 | V Kopřiva | 0 | 5 | Alt | F Comesaña | 78 | 6 | ||||||||||||||||||||
| A Collarini | 6 | 7 | A Collarini | 3 | 5 | ||||||||||||||||||||||
| Alt |  M Pucinelli de Almeida | 6 | 7 | Alt | M Pucinelli de Almeida | 6 | 7 | ||||||||||||||||||||
| F Maestrelli | 2 | 5 | Alt | M Pucinelli de Almeida | 2 | 2 | |||||||||||||||||||||
 J Sousa | 2 | 64 | Alt | F Comesaña | 6 | 6 | |||||||||||||||||||||
| Q |  V Sachko | 6 | 77 | Q | V Sachko | 3 | 6 | 3 | |||||||||||||||||||
| Alt | F Comesaña | 6 | 77 | Alt | F Comesaña | 6 | 2 | 6 | |||||||||||||||||||
| 7 | K Coppejans | 3 | 64 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | F Agamenone | 63 | 2 | ||||||||||||||||||||||||
| Q | RA Burruchaga | 77 | 6 | Q | RA Burruchaga | 6 | 62 | 77 | |||||||||||||||||||
| Q | F Gaio | 3 | 4 | M Navone | 4 | 77 | 61 | ||||||||||||||||||||
| M Navone | 6 | 6 | Q | RA Burruchaga | 6 | 6 | |||||||||||||||||||||
| WC | L Rottoli | 3 | 1 | Q |  N Serdarušić | 3 | 3 | ||||||||||||||||||||
| M Trungelliti | 6 | 6 | M Trungelliti | 4 | 1r | ||||||||||||||||||||||
| Q | N Serdarušić | 6 | 6 | Q | N Serdarušić | 6 | 3 | ||||||||||||||||||||
| 4 | R Bonadio | 3 | 0 | Q | RA Burruchaga | 3 | 0 | ||||||||||||||||||||
| 8 | S Shimabukuro | 3 | 3 | P Llamas Ruiz | 6 | 6 | |||||||||||||||||||||
| P Llamas Ruiz | 6 | 6 | P Llamas Ruiz | 4 | 6 | 6 | |||||||||||||||||||||
| Q | S Travaglia | 6 | 6 | Q | S Travaglia | 6 | 1 | 2 | |||||||||||||||||||
| WC | Gabriele Piraino | 0 | 3 | P Llamas Ruiz | 6 | 6 | |||||||||||||||||||||
| D Svrčina | 6 | 6 | 2/WC | L Nardi | 3 | 4 | |||||||||||||||||||||
| R Noguchi | 4 | 3 | D Svrčina | 6 | 65 | 2 | |||||||||||||||||||||
| L Darderi | 6 | 1 | 3 | 2/WC | L Nardi | 3 | 77 | 6 | |||||||||||||||||||
| 2/WC | L Nardi | 1 | 6 | 6 | |||||||||||||||||||||||
Benjamin Bonzi and Quentin Halys were the defending champions, but were not eligible to compete this year.
Omar Jasika and Naoki Nakagawa are the defending champions, but they chose not to participate.
Félix Auger-Aliassime and Denis Shapovalov won the title, defeating Brandon Holt and Riley Smith in the final, 7–5, 7–6(7–3).
James Cerretani and Max Schnur were the defending champions but chose not to defend their title.
Julian Ocleppo and Andrea Vavassori were the defending champions but chose to defend their title with different partners. Ocleppo partnered Andrea Pellegrino but lost in the first round to David Marrero and Roberto Maytín. Vavassori partnered Andrei Vasilevski but lost in the final to Tomislav Brkić and Ante Pavić.
Julian Ocleppo and Andrea Vavassori were the defending champions but only Vavassori chose to defend his title, partnering Andrea Pellegrino. Vavassori lost in the semifinals to Ivan and Matej Sabanov.
Markus Eriksson and André Göransson were the defending champions but only Eriksson chose to defend his title, partnering Tuna Altuna. Eriksson lost in the quarterfinals to Sander Arends and David Pel.
Mateusz Kowalczyk and Szymon Walków were the defending champions but chose to defend their title with different partners. Kowalczyk partnered Karol Drzewiecki but lost in the final to Andre Begemann and Florin Mergea. Walków partnered Marcin Matkowski but lost in the first round to Jeremy Jahn and Pedro Martínez.
Filippo Baldi and Andrea Pellegrino were the defending champions but chose not to defend their title.
Dustin Brown and Donald Young were the defending champions but chose not to defend their title.
Laurynas Grigelis and Andrea Pellegrino were the defending champions but chose not to defend their title.
Lorenzo Sonego was the defending champion, but chose not to participate. Alex de Minaur defeated Alexander Bublik in the final, 2–0, after Bublik retired with an ankle injury.
Henri Laaksonen was the defending champion but chose not to defend his title.
Andrea Pellegrino was the defending champion but lost in the quarterfinals to Flavio Cobolli.
Ariel Behar and Andrey Golubev were the defending champions but chose not to defend their title.
Jaume Munar was the defending champion but chose not to defend his title.
Jozef Kovalík was the defending champion but chose not to defend his title.
Tallon Griekspoor was the defending champion but chose not to defend his title.
Alessandro Giannessi was the defending champion but chose not to defend his title.
Lorenzo Sonego was the defending champion but chose not to defend his title.
Franco Agamenone and Manuel Guinard were the defending champions but only Agamenone chose to defend his title, partnering Salvatore Caruso. Agamenone lost in the first round to Jacopo Berrettini and Andrea Pellegrino.