Mom Rajawongse Kalyanakit Kitiyakara (Thai: กัลยาณกิติ์ กิติยากร; RTGS: Kanlayanakit Kitiyakon; 1929–1987) was a Thai cardiothoracic surgeon^[1] who trained in England and the United States. He was born in Bangkok to Nakkhatra Mangala, Prince of Chantaburi II and Bua Kitiyakara. He was the eldest brother of Sirikit, Queen of Thailand.

Kitiyakara began his training at Guy's Hospital Medical School in London, qualifying in 1956. He moved to the United States for further training and then returned to Thailand, becoming consultant cardiothoracic surgeon at the Siriraj Hospital Medical School in Bangkok.

In 1957 he married Arun Snidvongs na Ayudhya, with whom he had two children.

In 1987 he died aged 57 at Ramathibodi Hospital.

• Membership of the Royal College of Surgeons 1956
• Fellowship of the Royal College of Surgeons by election 1981
• Bachelor of Medicine, Bachelor of Surgery London 1957
• Licentiate of the Royal College of Physicians 1956