Tshiluba, also known as Luba-Kasai or Luba-Lulua, is a Bantu language spoken primarily in the Kasai region of the Democratic Republic of the Congo. It is one of the four national languages of the Democratic Republic of the Congo, alongside Lingala, Kiswahili, and Kikongo. Tshiluba is spoken by the Luba people and has several dialects, with variations in pronunciation and vocabulary.

The language is written using the Latin alphabet, and there have been efforts to standardise the orthography for Tshiluba. Tshiluba is known for its rich oral traditions, including storytelling, proverbs, and rituals. It plays a significant role in the cultural identity of the Luba people, reflecting their history, social structures, and worldview.

In recent years, there has been a growing recognition of the importance of preserving and promoting indigenous languages like Tshiluba. Efforts are being made to incorporate Tshiluba into education and media, contributing to its vitality and ensuring that it continues to be a vital part of the cultural heritage of the Luba people.