Ah Lian is a pejorative term commonly given to a certain group of young Chinese girls in Southeast Asia, especially Singapore and Malaysia. These Chinese girls, whose collective age ranges from their adolescent years to late 20s, are usually centralised in the busier and more developed cities in the region. They usually hang out in Bugis Junction, Far East Plaza, outside Cineleisure and are regarded as bimbos, and are stereotyped as anti-intellectual, superficial, materialistic, and shallow.

Ah Lians are commonly stereotyped as having hair dyed in gaudy and bright colours, and attired in fashion mimicking hip-hop culture, or outdated Japanese fashion, although how much of this is true is debatable. Most of Ah Lians are wearing fashions that are out dated and they still have their hair straightened with thick fringe. They love to take own pictures and imitate the way Japanese girls take their pictures which is by making their eyes look big and puffing their cheeks. Few more examples of the way they take pictures are by putting a horizontal 'Peace sign' on their eye, putting a fist facing outwards on their puffed cheek. Another distinct feature of an Ah Lian is they swear in most of their conversations just like Ah Bengs. Much like their male counterparts - that is, Ah Bengs - Ah Lians are also thought of as being excessively flashy and show-offs.

The Ah Lian "culture" is especially prevalent in the secular Chinese educational system schools, typified by their frequent use of vulgarities and appearance in cliques (joined by their male counter parts Ah Bengs).

Ah Lians commonly speak in a kind of hybrid mix of Singlish or Manglish and Chinese, or Chinese-related dialects. It is also common for the grammar from these dialects to cross over English usage, creating English phrases with Chinese grammar.

Ah Bengs and Ah Lians love techno music. One can immediately spot an Ah Beng's or Ah Lian's car on the road. Their cars are usually heavily modified with big exhaust pipes, and powderful woofer set at the back of the car. They usually drive very fast while listening to loud techno music in their car.

Vulgarities are often use. At most of the time, getting near shameless Ah Lians and just happen to look at them and admire their stupidity and ugliness will earn you curses all the way to the past 12345678th generation, whereby your ancestors(or parents) private parts are being shouted at you. At times, some ignorant and arrogant Ah Lians acting class will try to use English vulgarities like the famous F*** and B**** when it is already NOT class when you use profanities.