Poul Christian Holst (21 January 1776 – 7 August 1863) was a Norwegian government official who held several positions in the period 1814–1848.
Holst led negotiations over debt with Denmark in 1817, after the dissolution of the union between the two countries in 1814.
He was the son of parish priest Christian Holst (1743–1824) and Marthe Grønbech (1743–1786).
He died in Christiania (now Oslo) in 1863 and was buried at Vår Frelsers gravlund.
His memoires were published posthumously, in the years 1875 and 1876, under the title P. C. Holsts Efterladte Optegnelser om sit Liv og sin Samtid (P. C. Holts' Surviving Writings about His Life and His Times).