The Second De Geer cabinet, also called the First London cabinet, was the cabinet of the Netherlands from 10 August 1939 until 3 September 1940.

The cabinet was formed by the political parties Roman Catholic State Party (RKSP), Social Democratic Workers' Party (SDAP), Anti-Revolutionary Party (ARP), Christian Historical Union (CHU) and the Free-thinking Democratic League (VDB) following the dismissal of the Fifth Colijn cabinet by Queen Wilhelmina on 27 July 1939.

[1] The national unity government became a War cabinet on 14 May 1940 following the German invasion and fled to London.

The government-in-exile was dismissed by Queen Wilhelmina on 26 August 1940.

[2] The cabinet fell on 26 August 1940 after a conflict between Queen Wilhelmina and Prime Minister Dirk Jan de Geer; the cabinet continued for one week as a demissionary cabinet until the First Gerbrandy cabinet was installed on 3 September 1940.