Guotai or Guo Tai is the atonal pinyin romanization of various Chinese words and names, usually in reference to a traditional expression about a peaceful and prosperous era in a country's history.

It may refer to:

Business Guotai Junan Securities, a Chinese listed company, a securities broker and an investment bank, that formed by a merger Guotai Junan Futures, a subsidiary of Guotai Junan Securities Guotai Junan International Holdings, a listed company based in Hong Kong and a subsidiary of Guotai Junan Securities Guotai Securities, a predecessor of Guotai Junan Securities Cathay Pacific Airways, known as just Cathay Pacific, is a Hong Kong–based airline, also known as its pinyin transliteration of its Chinese name as Guotai hangkong Cathay Bank, a United States bank that was specialized for Chinese communities, also known as its pinyin transliteration of its Chinese name as Guotai Yinhang Cathay General Bancorp, parent company of Cathay Bank, a listed company in NASDAQ Cathay United Bank, a Taiwanese financial services company, also known as its pinyin transliteration of its Chinese name as Guotai Shihua Yinhang Cathay Life Insurance, a Taiwanese insurance company, also known as its pinyin transliteration of its Chinese name as Guotai Renshou Cathay Organisation, a Singapore film company, also known as its pinyin transliteration of its Chinese name as Guotai Jigou , formerly known as Motion Picture & General Investment, a Hong Kong–based film company and a subsidiary of Cathay Organisation

Buildings , a historical landmark movie theatre in Shanghai, also known as its pinyin transliteration of its Chinese name as Guotai Dianyingyuan The Cathay, a historical landmark movie theatre in Singapore that was owned by Cathay Organisation Cathay City, headquarters of Cathay Pacific Airways

Names Guotai (given name), also in the form of Kowk Tai, Kok Thay (, a.k.a. ), a Chinese scholar-official of Eastern Han dynasty Qing dynasty Chinese people, also known as his alternative name Guotai () Lady Wu (), a fictional character in the Romance of the Three Kingdoms, Guotai () was her nickname

See also Cathay (disambiguation) Kuo Tai-yuan Terry Gou Tai-ming Thailand ()