* Tagalog: His native language, which he used extensively in his writings.
* Spanish: The official language of the Philippines during his lifetime. He was educated in Spanish and wrote many of his works in this language.
* English: He learned English during his travels and used it in some of his writings and correspondence.
* French: He studied French and was familiar with French literature.
* German: He had some knowledge of German, which he may have learned during his travels in Europe.
* Latin: He was educated in Latin, which was a common language of scholarship in his time.
* Greek: He also had some knowledge of Greek.
Beyond these languages, Rizal also had an understanding of other languages such as Arabic, Malay, and Chinese, which he picked up through his interactions with different cultures.
It is important to note that while Rizal was fluent in several languages, he often chose to write in Tagalog or Spanish to reach a wider audience. His writings in these languages played a significant role in the Philippine national awakening and are considered important works of Philippine literature.