Prince Sithiporn Kridakara (Thai: หม่อมเจ้าสิทธิพร กฤดากร; April 11, 1883 – June 22, 1971) is known as Thailand's Farmer Prince[1] who was awarded the 1967 Ramon Magsaysay Award for Public service for his efforts in the development of Thai agriculture.

At 18, while studying mechanical engineering at City and Guild's Technical College, he was summoned back to his home country to help manage the family's lime-burning business.

[1][2] This interest came about due to his wife's fragile health which required the fresh air and open spaces of the countryside.

[1] Sithiporn successfully propagated the Nicholson Yellow Dent variety of corn which he encouraged other farmers to plant for animal feed.

[1] When the United Nations Food and Agriculture Organization (FAO) established the International Rice Commission in 1949, Sithiporn was elected as chairman.