| Arminas Lydeka | |
| Office: | Member of the Seimas |
| Term Start: | 13 November 2020 |
| Term Start1: | 8 July 2014 |
| Term End1: | 14 November 2016 |
| Predecessor1: | Petras Auštrevičius |
| Term Start2: | 19 October 2000 |
| Term End2: | 16 November 2012 |
| Office3: | Member of the European Parliament for Lithuania |
| Term Start3: | 1 May 2004 |
| Term End3: | 19 July 2004 |
| Party: | LS (since 2010) LiCS (2003–2010) LLS (1998–2003) |
| Otherparty: | ELDR |
| Birth Date: | df=yes 21 February 1968 |
Arminas Lydeka (born 21 February 1968) is a Lithuanian politician of the Liberals' Movement. He has been a member of the Seimas since 2020, having previously served from 2000 to 2012 and from 2014 to 2016.[1] He was an observer to the European Parliament from 2003 to 2004, and a member of the European Parliament from May to July in 2004.[2]