No, Samoan and Tongan are not the same language. They are two distinct languages that belong to the Polynesian branch of the Austronesian language family.
The Samoan language is primarily spoken in Samoa and American Samoa, while Tongan is spoken in Tonga. Although they share some similarities due to their common Polynesian roots and geographic proximity, each language has unique characteristics, vocabulary, and grammar structures.
For instance, the phonetic systems of both languages differ, leading to variations in pronunciation. Additionally, native speakers often find many words in one language to be unfamiliar in the other. Therefore, while there may be commonalities and mutual influences, Samoan and Tongan are separate languages with their own cultural significance and identity.