| Fullname: | Omar Saifeddine Zeineddine |
| Birth Date: | 13 June 1987 |
| Birth Place: | Beit El Faqs, Lebanon |
| Height: | 1.75 m |
| Position: | Midfielder |
| Youthyears1: | 2001–2007 |
| Youthclubs1: | Riyada Wal Adab |
| Years1: | 2007–2014 |
| Clubs1: | Riyada Wal Adab |
| Years2: | 2014–2017 |
| Clubs2: | Salam Zgharta |
| Caps2: | 49 |
| Goals2: | 5 |
| Years3: | 2017 |
| Clubs3: | Perseru Serui |
| Caps3: | 3 |
| Goals3: | 0 |
| Years4: | 2017–2018 |
| Clubs4: | Salam Zgharta |
| Caps4: | 18 |
| Goals4: | 8 |
| Years5: | 2018–2020 |
| Clubs5: | Nejmeh |
| Caps5: | 7 |
| Goals5: | 1 |
Omar Saifeddine Zeineddine (Arabic: عمر سيف الدين زين الدين; born 13 June 1987) is a Lebanese former professional footballer who played as a midfielder.
In 2017, Zeineddine moved to Indonesian club Perseru Serui.[1]