| 马尔堡挑战赛 | 06/24 11:15 | 25 | 洛伦佐∙吉斯蒂诺 v 若奥∙苏扎 | 6-7,2-6 | |
| 温布尔登资格赛 | 06/16 12:20 | 44 | 洛伦佐∙吉斯蒂诺 v 阿德里安∙蒙那德兹-Maceiras | 2-6,5-7 | |
| 梅斯特雷挑战赛 | 06/04 15:55 | 25 | 帕奥罗·罗伦兹 v 洛伦佐∙吉斯蒂诺 | 6-2,3-6,6-3 | |
| 维琴察挑战赛 | 05/27 10:20 | 25 | 洛伦佐∙吉斯蒂诺 v 安佐吉∙马丁 | 3-6,1-6 | |
| 罗马挑战赛 | 05/08 11:00 | 27 | 马尔科•切基纳托 v 洛伦佐∙吉斯蒂诺 | 6-2,2-6,6-4 | |
| 罗马挑战赛 | 05/07 12:30 | 26 | 洛伦佐∙吉斯蒂诺 v 马雷克 雅齐里 | 6-2,6-3 | |
| 罗马挑战赛 | 05/05 12:55 | 25 | 洛伦佐∙吉斯蒂诺 v 托马斯 法比诺 | 6-4,6-3 | |
| 埃斯特拉伐挑战赛 | 05/02 15:05 | 27 | 布雷斯∙劳拉 v 洛伦佐∙吉斯蒂诺 | 6-4,3-6,6-3 | |
| 埃斯特拉伐挑战赛 | 05/01 09:00 | 26 | 洛伦佐∙吉斯蒂诺 v 达米尔•德祖赫 | 6-4,6-1 | |
| 埃斯特拉伐挑战赛 | 04/29 09:00 | 25 | 马克西姆•奥特姆 v 洛伦佐∙吉斯蒂诺 | 6-7,6-1,3-6 | |
| ATP 巴塞罗那资格赛 | 04/20 12:45 | 53 | 安德烈•库内特索夫 v 洛伦佐∙吉斯蒂诺 | 6-4,7-5 | |
| ATP 巴塞罗那资格赛 | 04/19 13:10 | 45 | 洛伦佐∙吉斯蒂诺 v 托马斯 法比诺 | 2-6,6-3,6-1 | |
| ITF西班牙F5 | 03/09 10:30 | - | 洛伦佐∙吉斯蒂诺 v 乔迪∙桑佩∙蒙塔拿 | 3-6,6-4,5-7 | |
| ITF西班牙F5 | 03/08 09:00 | - | 洛伦佐∙吉斯蒂诺 v 杰森•库贝勒 | 7-5,6-4 | |
| ITF西班牙F5 | 03/05 14:30 | - | 洛伦佐∙吉斯蒂诺 v 若姆•穆纳尔 | 6-2,6-3 | |
| ITF西班牙F5 | 03/04 15:45 | - | 洛伦佐∙吉斯蒂诺 v Pol 托雷多∙巴基尔 | 6-0,6-7,7-5 | |
| 挑战者贝加莫 | 02/13 14:50 | 26 | 洛伦佐∙吉斯蒂诺 v M 切维森 | 6-4,3-6,2-6 |
Lorenzo Giustino (Italian pronunciation: [loˈrɛntso dʒuˈstiːno]; born 10 September 1991, in Naples) is an Italian tennis player.
Giustino has a career-high ATP singles ranking of 127 achieved on 12 August 2019 and a career-high ATP doubles ranking of 311 achieved on 15 April 2019.
Giustino made his ATP main draw debut at the 2015 BRD Năstase Țiriac Trophy, where he qualified for the main draw.
Giustino made his Grand Slam debut at the 2020 Australian Open. He defeated Frenchman Corentin Moutet 0–6, 7–6 (7), 7–6 (3), 2–6, 18–16 in the first round of 2020 French Open as a first time main draw qualifier at this Major. The match was the second-longest in French Open history, lasting 6 hours, 5 minutes. It was his first ATP tour-level win.
He qualified for his first ATP 500 tournament at the 2021 Dubai Tennis Championships as a lucky loser receiving a bye into the second round after the withdrawal of tenth seed Borna Ćorić.
He qualified for his second ATP 500 at the 2023 Barcelona Open Banc Sabadell.