Nightingale–Olympic or The Nightingale–Olympic Co., LTD. (Thai: ไนติงเกล-โอลิมปิก; or Nightingale is a department store in Thailand. It is the oldest operating department store in Thailand. The store is located on Tri Phet Road in the Phra Nakhon district in Bangkok's Wang Burapha and Phahurat neighborhoods.

Nightingale opened in 1930 (two years before Siamese revolution) by Nat Niyomvanich, a Dawoodi Bohra descent businessman, starting with a single shophouse near Sala Chalermkrung Royal Theatre. Later, on August 5, 1966, it officially opened under the present name Nightingale–Olympic.

Nightingale was considered to be a popular department in the 1960s, when the shopping centers of Wang Burapha (Buraphaphirom Palace) area were popular among teenagers of those days like Siam Square in modern times. It is the center of cosmetics, stationeries, fashion clothes, lingeries, musical instruments, beauty salons, sports goods and also Thailand's first fitness club. It uses the slogan "Hub of Sporting Goods, King of Musical Instruments, Queen of Cosmetics".

Currently, Nightingale has seven floors of three shophouses operated by Aroon Niyomvanich, a younger sister of Nat the founder, now she is over 90 years old.

• List of shopping malls in Bangkok

• Menist, Chris (2011-07-19). "Nightingale-Olympic: Bangkok nostalgia and back-breaking relics". CNN Travel.