Zailai rice (Chinese: 在來米, romanized: tsāi-lâi-bí) is a cultivar of rice derived from the subspecies Oryza sativa subsp.

[1] [2] The name "zailai" is derived from the Japanese "ざいらい" meaning "existing", to distinguish it from the penglai rice hybrids developed by the colonizers when Taiwan was under Japanese colonial rule.

[3] Zailai rice cultivars can be sub-divided into soft (e.g. "Taichung Sen No.

[5] [3] Zailai rice cultivation in Taiwan began in the 17th century during the Dutch Formosa period, when the Dutch introduced indica rice and water buffalo to the island; the Hokkien immigrants from the Fujian area in China also imported different strains of indica rice.

Subsequently, zailai rice was planted around the island by military settlements of the Kingdom of Tungning.