What is "ulsa"

ULSA or Ulsa may refer to:

• "ULSA" is an acronym for Universidad La Salle in Mexico
• Ulsa (乙巳) or Eulsa was the year corresponding to 1905 according to the traditional Korean calendar
• Ulsa treaty or "Eulsa treaty" is metonymn for the Japan–Korea Treaty of 1905
• A misspelling of ulcer
• Uganda Landmine Survivors Association