| Successor3: | Jarosław Szczepankiewicz |
| Birth Date: | 4 March 1944 |
| Birth Place: | Warsaw |
| Death Place: | Warsaw |
| Nationality: | Polish |
| Term End3: | 2007 |
| Alma Mater: | University of Warsaw |
| Profession: | Diplomat |
| Predecessor3: | Krzysztof Suprowicz |
| Term Start3: | 2005 |
| Mariusz Woźniak | |
| Ambassador From: | Poland |
| Country: | Indonesia |
| Term Start: | 1991 |
| Term End: | 1995 |
| Successor: | Ksawery Burski |
| Country3: | Ethiopia |
| Ambassador From2: | Poland |
| Country2: | Jordan |
| Term Start2: | 1999 |
| Term End2: | 2003 |
| Predecessor2: | Bogusław Rękas |
| Successor2: | Andrzej Biera |
| Ambassador From3: | Poland |
Mariusz Woźniak (4 March 1944 – 4 November 2020) was a Polish diplomat, ambassador to Indonesia (1991–1995), Jordan (1999–2003), and Ethiopia (2005–2007).
Woźniak graduated from English studies at the University of Warsaw. In 1981, he started his diplomatic career at the Ministry of Foreign Affairs as expert. He served at the embassies in Washington, D.C. (1981–1982), as First Secretary in Tokyo (1983–1987). Between 1991 and 1995, he represented Poland as ambassador to Indonesia. Next, from 1999 to 2003, he was ambassador to Jordan. Following his short stay at the diplomatic protocol in Warsaw, he ended his career as ambassador in Ethiopia (2005–2007).[1]
Besides Polish, he was speaking English and Russian.[2]