Dimitrios Gravalos (Greek: Δημήτρης Γράβαλος; born April 18, 1984, in Kalamaria) is a Greek sprinter, who specialized in the 400 metres.

[1] He won the gold medal for the 400 metres at the 2003 European Junior Championships in Tampere, Finland, with a time of 46.54 seconds.

[2] Gravalos competed for the men's 4 × 400 m relay at the 2008 Summer Olympics in Beijing, along with his teammates Stylianos Dimotsios, Konstadinos Anastasiou, and Pantelis Melachroinoudis.

The team finished the relay in fifteenth place for a seasonal best time of 3:04.30, failing to advance into the final.

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