The country was named "Langkasuka" in the Malay text Hikayat Merong Mahawangsa, and was referred to as "Lengkasuka" in the Javanese poem Nagarakretagama.
Landet hedder "Langkasuka" i den malayiske tekst Hikayat Merong Mahawangsa, og blev omtalt som "Lengkasuka" i det japanske digt Nagarakretagama.