Yldefonso may refer to:
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Parque Yldefonso Solá Morales
Parque Yldefonso Solá Morales is a baseball stadium in Caguas, Puerto Rico. It serves as the home field of the Criollos de Caguas. The stadium held 10,000 people. The hockey events for the 2010 Central American and Caribbean Games
The 21st ...
, multi-use stadium in Caguas, Puerto Rico
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Teófilo Yldefonso
Teófilo E. Yldefonso (born Teófilo Yldefonso y de la Cruz; November 5, 1903 – June 19, 1942) was a Filipino breaststroke swimmer. He was the first Filipino and Southeast Asian to win an Olympic medal, and the first Filipino to win multiple ...
(1903–1943), Filipino swimmer in the breaststroke
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