Ariel Chang (born 29 August 1980), now Ngalim Tiunn is a Taiwanese children's rights activist and politician.

Chang was born in Taipei County on 29 August 1980 and graduated from National Taiwan Ocean University.

She earned a master's degree in communication, public relations, and advertising from Ulster University in Northern Ireland.

[2] She was ranked third on the Democratic Progressive Party list for proportional representation.

[3][4] While formally registering her candidacy for the 2024 legislative election, Chang expressed hope that the government would consider children's' needs in the policymaking process.