25 Martiou (, , ) is a metro station serving Thessaloniki Metro's Line 1 and Line 2. The station takes its name from a nearby major road, which commemorates the traditional date of the start of the Greek War of Independence in 1821. It entered service in 2024.
Travelling on Line 1 or Line 2 from , 25 Martiou is the last station at which the two lines share tunnels. From here eastwards, Line 1 continues to and Line 2 to .
This station also appears in the 1988 Thessaloniki Metro proposal. In older iterations of the Thessaloniki Metro Lines Development Plan, the station is listed as Patrikiou, named after , a lawyer who in 1925 became the first elected Mayor of Thessaloniki. In the 1988 proposal, Patrikiou and 25 Martiou are separate stations.
When announcements are made in English on the onboard public address system, the station's name is given as just Martiou.