quality:correction
Hakka (Chinese: 客家话; pinyin: Kèjiāhuà; Pha̍k-fa-sṳ: Hak-kâ-va / Hak-kâ-fa, Chinese: 客家语; pinyin: Kèjiāyǔ; Pha̍k-fa-sṳ: Hak-kâ-ngî) forms a language group of varieties of Chinese, spoken natively by the Hakka people in parts of Southern China, Taiwan, some diaspora areas of Southeast Asia and in overseas Chinese communities around the world.

Due to its primary usage in isolated regions where communication is limited to the local area, Hakka has developed numerous varieties or dialects, spoken in different provinces, such as Guangdong, Guangxi, Hainan, Fujian, Sichuan, Hunan, Jiangxi, Guizhou, as well as in Taiwan, Singapore, Malaysia, Thailand and Indonesia. Hakka is not mutually intelligible with Yue, Wu, Min, Mandarin or other branches of Chinese, and itself contains a few mutually unintelligible varieties. It is most closely related to Gan and is sometimes classified as a variety of Gan, with a few northern Hakka varieties even being partially mutually intelligible with southern Gan. There is also a possibility that the similarities are just a result of shared areal features.

Taiwan designates Hakka as one of its national languages, thus regarding the language as a subject for its study and preservation. Pronunciation differences exist between the Taiwanese Hakka dialects and mainland China's Hakka dialects; even in Taiwan, two major local varieties of Hakka exist.

The Meixian dialect (Moiyen) of northeast Guangdong in mainland China has been taken as the "standard" dialect by the government of mainland China. The Guangdong Provincial Education Department created an official romanization of Moiyen in 1960, one of four languages receiving this status in Guangdong.

The She ethnic group and Hakka people have a history of contact, and Hakka language has entered the She language in large numbers.