Teresa Teng is also proficient in languages. Besides being fluent in the Shantung, Amoy and Canton dialects, and standard Mandarin, she can also speak Japanese and English.
在語文方面，鄧麗君頗有天份，她第一次到香港時，完全不會說廣東話，第二次會說幾句，第三次上電視時已經可以以粵語對話，同時還能演唱粵語歌曲。