| Diana Lazăr | |
| Fullname: | Diana Alina Lazăr |
| Nationality: | Romanian |
| Birth Date: | 24 August 1991 |
| Birth Place: | Turnu Severin, Romania |
| Position: | Left Back |
| Currentclub: | CS Universitatea Cluj-Napoca |
| Youthclubs1: | CSȘ Turnu Severin |
| Youthyears2: | –2010 |
| Youthclubs2: | CSȘ 2 Baia Mare |
| Years1: | 2010–2014 |
| Clubs1: | HCM Baia Mare |
| Years2: | 2010–2014 |
| Clubs2: | HCM II Baia Mare |
| Years3: | 2014–2016 |
| Clubs3: | HC Zalău |
| Years4: | 2016– |
| Clubs4: | CS Universitatea Cluj-Napoca |
| Nationalyears1: | 2013– |
| Nationalteam1: | Romania |
Diana Alina Lazăr (née Puiu; born 24 August 1991 in Drobeta-Turnu Severin)[1] is a Romanian handballer who plays for CS Universitatea Cluj-Napoca.