María Catalina Irigoyen Echegaray was a Spanish religious sister born in Pamplona in 1848. A member of the Sisters Servants of Mary, she dedicated her life to providing care and comfort to the sick and the elderly. Her religious vocation emerged during her adolescence while she was visiting the homeless and infirm in hospitals. She eventually joined the order in Madrid, where she continued her service to those in need until her death from bone tuberculosis in 1918.