Axel Fredrik Claësson Wachtmeister af Johannishus (born February 10, 1855) was a Swedish politician and diplomat who from 2 August 1905 until 7 November 1905 served as Minister of Foreign Affairs of Sweden.

He grew up in Thystad Castle in Nyköping Municipality, Södermanland County.

For several years he held diplomatic posts at the Swedish embassies in Paris, Rome and Vienna, but left diplomacy at the age of 27.

From 2 August 1905 until 7 November 1905 served as Minister of Foreign Affairs of Sweden.

In 1906, he refused the offer of the king to take up the post of prime minister.