Kampung Gertak Sagu (GPS: 6.14549, 102.31288) is a village in the Pengkalan Chepa area of Jajahan Kota Bharu in Kelantan. The village is located along Federal Route 131, also called Jalan Raja Perempuan Zainab II.
The word gertak in the name refers to a small bridge or titi. Not many places have it on their name, another being Gertak Sanggul in Penang.