Bubble tea (also known as pearl milk tea, bubble milk tea, tapioca milk tea, boba tea, or boba; Chinese: 珍珠奶茶; pinyin: zhēnzhū nǎichá, 波霸奶茶; bōbà nǎichá; 泡泡茶; pàopào chá) is a tea-based drink that originated in Taiwan in the early 1980s. It most commonly consists of tea accompanied by chewy tapioca balls ("boba" or "pearls"), but it can be made with other toppings as well, such as grass jelly, aloe vera, or red bean.

Bubble tea has many varieties and flavors, but the two most popular varieties are black pearl milk tea and green pearl milk tea ("pearl" signifies the tapioca balls at the bottom).