| Challenger Modena | 06/28 12:15 | 26 | [221] Stefano Travaglia v Maks Kasnikowski [309] | 2-6,6-7 | |
| Challenger Modena | 06/27 09:30 | 25 | Gilles Arnaud Bailly v Maks Kasnikowski | 4-6,5-7 | |
| Challenger Modena | 06/26 09:20 | 19 | Maks Kasnikowski v Daniel Dutra Da Silva | Walkover | |
| Challenger Modena | 06/25 15:15 | 14 | [322] Maks Kasnikowski v Saba Purtseladze [424] | 6-4,6-2 | |
| Challenger Poznan | 06/21 13:05 | 26 | [322] Maks Kasnikowski v Mariano Navone [240] | 4-6,6-7 | |
| Challenger Poznan | 06/19 13:40 | 25 | [322] Maks Kasnikowski v Henri Laaksonen [249] | 6-1,2-6,7-6 | |
| Challenger Tyler | 06/04 21:00 | 14 | [319] Maks Kasnikowski v Gustavo Heide [442] | 6-7,3-6 | |
| Challenger Little Rock | 05/30 15:00 | 25 | [319] Maks Kasnikowski v Joao Lucas Reis da Silva [272] | 2-6,3-6 | |
| Challenger Little Rock | 05/29 15:00 | 19 | [319] Maks Kasnikowski v Omni Kumar [399] | 6-4,7-5 | |
| Challenger Little Rock | 05/28 15:00 | 14 | [319] Maks Kasnikowski v Rubin Statham [467] | 6-3,6-7,6-4 | |
| Challenger Skopje | 05/23 10:00 | 25 | [241] Dragos N Madaras v Maks Kasnikowski [316] | 7-6,6-1 | |
| Challenger Skopje | 05/22 10:30 | 19 | [316] Maks Kasnikowski v Duje Ajdukovic [383] | 5-7,7-5,7-6 | |
| Challenger Skopje | 05/21 12:15 | 14 | Maks Kasnikowski v Blaz Rola | 1-6,7-5,7-5 | |
| ITF M15 Kursumlijska Banja | 05/05 09:25 | 27 | [352] Maks Kasnikowski v Elliot Benchetrit [448] | 6-4,6-7,5-7 | |
| ITF M15 Kursumlijska Banja | 05/04 11:40 | 26 | [352] Maks Kasnikowski v Petr Nesterov [465] | 7-6,6-1 | |
| ITF M15 Kursumlijska Banja | 05/03 14:10 | 25 | Maks Kasnikowski v Kristijan Juhas | 7-5,6-4 | |
| ITF M15 Kursumlijska Banja | 04/30 08:00 | 29 | [352] Maks Kasnikowski v Duje Ajdukovic [454] | 6-4,7-6 | |
| ITF M15 Kursumlijska Banja | 04/29 11:05 | 28 | [352] Maks Kasnikowski v Mili Poljicak [467] | 7-5,6-2 | |
| ITF M15 Kursumlijska Banja | 04/28 07:30 | 27 | Maks Kasnikowski v Gorazd Srbljak | 6-3,7-5 | |
| ITF M15 Kursumlijska Banja | 04/27 09:10 | 26 | Maks Kasnikowski v Dali Blanch | 6-1,6-3 | |
| ITF M15 Kursumlijska Banja | 04/26 07:00 | 25 | Maks Kasnikowski v Matvey Minin | 6-3,6-2 | |
| ITF M25 Split | 04/22 08:00 | 28 | [440] Duje Ajdukovic v Maks Kasnikowski [350] | 7-6,6-7,7-5 | |
| ITF M25 Split | 04/21 10:45 | 27 | Gergely Madarasz v Maks Kasnikowski | 2-6,0-6 | |
| ITF M25 Split | 04/20 13:15 | 26 | Emilien Voisin v Maks Kasnikowski | 6-7,4-6 | |
| ITF M25 Split | 04/20 09:10 | 25 | Antonio Voljavec v Maks Kasnikowski | 2-6,4-6 | |
| Challenger Barletta | 04/03 08:00 | 19 | [338] Julian Ocleppo v Maks Kasnikowski [354] | 6-7,6-2,6-2 | |
| Challenger Barletta | 04/02 09:20 | 14 | [400] Oleksandr Ovcharenko v Maks Kasnikowski [355] | 5-7,4-6 | |
| Challenger Girona | 03/27 10:10 | 19 | [255] Titouan Droguet v Maks Kasnikowski [355] | 6-1,7-6 | |
| Challenger Girona | 03/26 08:30 | 14 | [355] Maks Kasnikowski v Nikola Milojevic [317] | 7-6,6-4 | |
| Challenger Les Franqueses del Vallès | 03/20 15:15 | 19 | [355] Maks Kasnikowski v Bogdan Bobrov [424] | 7-6,6-7,5-7 |
Maks Kaśnikowski (born 6 July 2003) is a Polish tennis player.
Kaśnikowski has a career high ATP singles ranking of world No. 245 achieved on 15 April 2024. He also has a career high ATP doubles ranking of No. 688 achieved on 8 May 2023.
Kaśnikowski represents Poland at the Davis Cup, where he has a W/L record of 2–1.
In October, he reached his first Challenger final in Ortisei, Italy and moved into a new career high in the top 290 in the rankings, that he first reached on 3 July 2023.
He won his first Challenger title at the 2024 Oeiras Indoors, saving six match points in the opening round against Adrian Andreev, becoming the second-youngest Polish champion in history to win a title. Only a 19-year-old Jerzy Janowicz was younger when he won his title in St. Remy, France in 2010.