| Haythem Ayouni | |
| Birth Date: | 16 May 1991 |
| Birth Place: | Kairouan |
| Height: | 1.83 m |
| Currentclub: | CS Sfaxien |
| Clubnumber: | 32 |
| Position: | defender |
| Years1: | 2014–2015 |
| Clubs1: | EO Sidi Bouzid |
| Years2: | 2015–2016 |
| Clubs2: | JS Kairouan |
| Caps2: | 24 |
| Goals2: | 1 |
| Years3: | 2016–2017 |
| Clubs3: | Étoile du Sahel |
| Caps3: | 2 |
| Goals3: | 0 |
| Years4: | 2017–2019 |
| Clubs4: | JS Kairouan |
| Caps4: | 26 |
| Goals4: | 0 |
| Years5: | 2020–2021 |
| Clubs5: | Stade Tunisien |
| Caps5: | 26 |
| Goals5: | 2 |
| Years6: | 2022 |
| Clubs6: | Al Masry SC |
| Years7: | 2023 |
| Clubs7: | Al Ahli SC (Tripoli) |
| Years8: | 2023–2024 |
| Clubs8: | Asswehly SC |
| Years9: | 2024– |
| Clubs9: | CS Sfaxien |
Haythem Ayouni (born 16 May 1991) is a Tunisian football defender.[1]