Koyilandy (IPA: [kojilɐːɳɖi];) is a municipality and a taluk in Kozhikode district, Kerala on the Malabar Coast. The historical town is located right in the middle of the coast of Kozhikode district, between Kozhikode and Kannur, on National Highway 66.

The independence activist K. Kelappan, popularly known as Kerala Gandhi, was born in a nearby village, Muchukunnu.

Pandalayani is described by different authors, all the way from Europe to Arabia to China, in different names. According to the Malabar Manual written by William Logan in 1887, Panthalayani was called by the names:

Pliny the Elder describes the place as Patale.

The Odoric of Pordenone called Pandalayani as Flandarina.

The medieval Moroccan traveller Ibn Battuta called it Fandaraina.

The Portuguese writers called Pandalayani as Pandarani.

The medieval historic chronicle Tuhfat Ul Mujahideen written by the Zainuddin Makhdoom II of Ponnani calls the port town as Fundreeah.