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.
Krtíš is a waterway situated in southern central Slovakia. It passes through the Zvolen and Veľký Krtíš administrative divisions, including the towns of Modrý Kameň and Veľký Krtíš.