| ITF M25 Marburg | 07/07 10:30 | 27 | Dominik Recek v Louis Wessels | 3-6,0-6 | |
| ITF M25 Marburg | 07/06 16:40 | 26 | Daniel Paty v Louis Wessels | 5-7,5-7 | |
| ITF M25 Marburg | 07/05 10:55 | 25 | Karlo Cubelic v Louis Wessels | 7-6,4-6,3-6 | |
| ITF M25 Arlon | 06/30 10:55 | 27 | [322] Louis Wessels v Sandro Kopp [446] | 6-7,3-6 | |
| ITF M25 Arlon | 06/29 08:00 | 26 | [322] Louis Wessels v Wilson Leite [483] | 4-6,7-5,6-0 | |
| ITF M25 Arlon | 06/28 08:00 | 25 | Louis Wessels v John Sperle | 6-1,5-7,6-3 | |
| ATP Halle | 06/20 11:35 | 25 | [347] Louis Wessels v Yannick Hanfmann [53] | 4-6,6-3,3-6 | |
| ATP Halle | 06/18 10:35 | 19 | [344] Louis Wessels v Henri Squire [316] | 6-3,3-6,6-3 | |
| ATP Halle | 06/17 09:00 | 45 | [56] Zhizhen Zhang v Louis Wessels [344] | 4-6,2-6 | |
| ATP Stuttgart | 06/10 11:00 | 14 | [83] Marton Fucsovics v Louis Wessels [323] | 6-3,6-1 | |
| Challenger Heilbronn | 06/04 12:20 | 14 | [323] Louis Wessels v Andrea Arnaboldi [457] | 3-6,6-4,6-7 | |
| Challenger Troisdorf | 05/29 10:00 | 19 | [222] Nick Hardt v Louis Wessels [323] | 6-3,7-6 | |
| Challenger Troisdorf | 05/28 14:30 | 14 | [427] Max Hans Rehberg v Louis Wessels [323] | 6-7,6-4,3-6 | |
| Challenger Skopje | 05/23 08:30 | 25 | [226] Aziz Dougaz v Louis Wessels [315] | 3-6,6-2,6-3 | |
| Challenger Bordeaux | 05/15 11:00 | 19 | [429] Elliot Benchetrit v Louis Wessels [280] | 6-4,6-4 | |
| Challenger Bordeaux | 05/14 13:25 | 14 | [444] Arthur Reymond v Louis Wessels [280] | 0-6,5-7 | |
| Challenger Mauthausen | 05/09 11:45 | 25 | [122] Sebastian Ofner v Louis Wessels [280] | 6-7,6-4,7-5 | |
| ITF M15 Meerbusch | 04/29 14:55 | 28 | Louis Wessels v Marat Sharipov | 3-6,6-4,4-6 | |
| ITF M15 Meerbusch | 04/29 08:00 | 26 | Louis Wessels v Tom Gentzsch | Cancelled | |
| ITF M15 Meerbusch | 04/28 12:55 | 27 | Louis Wessels v Liam Gavrielides | 6-1,6-1 | |
| ITF M15 Meerbusch | 04/27 15:25 | 26 | Louis Wessels v Florian Broska | 6-1,6-4 | |
| ITF M15 Meerbusch | 04/26 13:50 | 25 | Louis Wessels v Yvo Panak | 7-6,6-3 | |
| ATP München | 04/16 09:00 | 19 | [126] Aslan Karatsev v Louis Wessels [285] | 6-2,6-2 | |
| ATP München | 04/15 10:55 | 14 | [285] Louis Wessels v Daniel Masur [272] | 6-3,3-6,6-3 | |
| ITF M15 Telde | 04/12 12:05 | 25 | Louis Wessels v Yaroslav Demin | 6-2,1-6,2-6 | |
| ITF M25 Reus | 04/05 08:00 | 25 | [316] Jaime Faria v Louis Wessels [290] | 7-5,6-4 | |
| ITF M25 Trimbach | 03/15 15:05 | 25 | Louis Wessels v Adam Moundir | 3-6,2-6 | |
| Challenger Pau | 02/28 17:00 | 25 | [198] Alexander Ritschard v Louis Wessels [290] | 7-6,7-6 | |
| Challenger Pau | 02/27 12:50 | 19 | [286] Valentin Royer v Louis Wessels [290] | 1-6,6-3,7-6 | |
| Challenger Pau | 02/26 15:30 | 14 | [341] Maxime Janvier v Louis Wessels [290] | 6-7,3-6 |
Louis Wessels (German: Weßels; born 27 August 1998) is a German tennis player. He has a career-high ATP singles ranking of world No. 267, achieved in July 2022.