Krtíš is a river in southern central Slovakia. It flows through Zvolen and Veľký Krtíš districts, through the towns of Modrý Kameň and Veľký Krtíš.
In southern central Slovakia, Krtíš is a river that flows through the Zvolen and Veľký Krtíš districts, as well as the towns of Modrý Kameň and Veľký Krtíš.