The House of Representatives of Thailand of 2023 consists of 500 members elected in the 14 May 2023 general election, who, together with 250 members of the appointed Senate, form the National Assembly of Thailand. It is the second parliament to be convened in accordance with the 2017 constitution of Thailand, which followed the 2014 military coup.

The House of Representatives is the lower house of the National Assembly of Thailand, the legislative branch of the Thai government. The system of government of Thailand is that of a constitutional monarchy and a parliamentary democracy. The system of the Thai legislative branch is modelled after the Westminster system. The House of Representatives has 500 members, of which 400 are elected through single member constituency elections, while the other 100 are chosen through party lists parallel voting.