State Tower is a skyscraper located on Silom Road, Bang Rak business district, Bangkok, Thailand, adjacent to Charoen Krung Road. Built in 2001, it has a floor area of 300,000 m² (3,200,000 sq ft). State Tower has 68 floors and is 247 m (810 ft) tall, making it the 8th tallest building in Thailand. It is also the tallest mixed-use building in Thailand.

Conceived by Thai architect Professor Rangsan Torsuwan in the early 1990s and designed by Rangsan Architecture, the massive building is characterised by its thirty-meter tall golden rooftop dome and neo-classical balconies. It was originally named "Silom Precious Tower", later "Royal Charoen Krung Tower" (RCK Tower) and then "State Tower".