Cathinka Augusta Guldberg (3 January 1840 – 22 October 1919) was a Norwegian nurse, educator and deaconess.

She was the eldest daughter of Cato August Guldberg (1812–1892), who was a parish priest.

Her mother, Hanna Sophie Theresia Bull (1810–1854), was a cousin of Marcus Thrane (1817–1890), leader of the first Norwegian labour union.

She visited the Lutheran religious community at Kaiserswerth-am-Rhein, where she observed Pastor Theodor Fliedner and the deaconesses working with the sick and the deprived.

Between 1886 and 1904, Henrik Thrap-Meyer was engaged as the architect in the development of the deaconess college in the district of St. Hanshaugen in Oslo.