Khmer, the official language of Cambodia, has been influenced by Vietnamese in terms of vocabulary and grammar due to historical and cultural interactions between the two countries.

Chữ Nôm is a Vietnamese writing system that was developed based on Chinese characters and used to write Vietnamese. It has been adopted by some minority languages in Vietnam, such as Tày, Nùng, and Thái.

Cham, an Austronesian language spoken in Vietnam, has been influenced by Vietnamese in terms of phonology, particularly in the area of tone.

Phở, a Vietnamese noodle soup, has been adopted into Khmer and is known as "បុក" (bok).

Khmu, a Mon-Khmer language spoken in Laos, has been influenced by Vietnamese in terms of vocabulary and grammar due to historical and cultural interactions between the two countries.

Nước mắm, a Vietnamese fermented fish sauce, has been adopted into Khmer and is known as "ទឹកត្រី" (teuk trei).

Shan, a Tai-Kadai language spoken in Thailand, has been influenced by Vietnamese in terms of vocabulary and grammar due to historical and cultural interactions between the two countries.

Bún, a Vietnamese rice noodle, has been adopted into Khmer and is known as "បុ័ន" (buon).

Mon, a Mon-Khmer language spoken in Myanmar, has been influenced by Vietnamese in terms of vocabulary and grammar due to historical and cultural interactions between the two countries.

Bánh xèo, a Vietnamese pancake, has been adopted into Khmer and is known as "បាញ់សៀវ" (banh siev).

Cantonese, a Chinese dialect spoken in southern China, has been influenced by Vietnamese in terms of vocabulary and grammar due to historical and cultural interactions between the two countries.

Chả giò, a Vietnamese spring roll, has been adopted into Khmer and is known as "ចាហ្គី" (chah gi).

There is no evidence of Vietnamese influence on any language spoken in India.

Xôi, a Vietnamese sticky rice, has been adopted into Khmer and is known as "ស្រូវស្ងោរ" (srov sangor).

There is no evidence of Vietnamese influence on any language spoken in Malaysia.