Than Phu Ying Busba Kitiyakara Sathanapong (Thai: บุษบา กิติยากร สธนพงศ์; RTGS: Butsaba Kitiyakon Sathanaphong, born 2 August 1934) is the daughter of Mom Chao Nakkhatra Mangala Kitiyakara and younger sister of Thailand's Queen Mother Sirikit Kitiyakara.