Hrēþmōnaþ is seo þridda mōnaþ þæs gēares in þǣre Gregoriscan gerīmbēc, and hæfþ 31 dagas. Genemned æfter Mars, þǣm Rōmāniscan gode gūðes.
In ealdre Rōme, ƿearþ Hrēþmōnaþ Martius gehāten. Hē ƿearþ æfter þǣm gūþgode (Mars) genemned and ƿearþ geteald a lucky time tō onginnenne gūþ.In ancient Hellenic civilization, Hrēþmōnaþ hātte Anthesterion.