Ernakulam Junction is considered a major railway station in Kochi, India. The railway station is administered by the Southern Railway department of the Indian Railways. Ernakulam Junction railway station is well connected with major parts of the country. Due to the loop structure of the tracks, trains going from the Thrissur side to the Kottayam side have to turn their directions, whereas those travelling for Alappuzha do not face this problem.

Ernakulam Junction railway station is known as "Ernakulam south" or simply "South" amongst the local people. The reason behind this name is to distinguish it from Ernakulam Town which in turn is named as "Ernakulam north" or simply "North". Some very significant trains like H.Nizamuddin - Trivandrum Rajdhani Express passes through this station. In south India, the station is also considered one of the major railway stations.