Count Erik Jönsson Dahlbergh (10 October 1625 – 16 January 1703) was a Swedish military engineer, Governor-general and Field marshal.

According to Cathal Nolan, Count Dahlberg was a highly innovative military engineer in the 17th and 18th century, often referred to as the "Swedish Vauban".

Dahlberg commanded Swedish engineers in several wars and his historic influence was ensured via his skill at map-making, the fortresses he designed, and his widely read writings on military architecture.

Orphaned at an early age, Dahlbergh's studies qualified him as a scribe and in 1641 he found employment in Hamburg with Gerdt Rehnskiöld (1610−1658), senior accountant for Pommern and Mecklenburg.

[6] In 1650, the military command dispatched Dahlbergh to Frankfurt to recoup war indemnity awarded to Sweden following the Treaty of Westphalia.

[6] In modern times, Erik Dahlbergh best known for compiling the collection of engravings called "Suecia Antiqua et Hodierna" published 1660–1716, and for assisting Samuel Pufendorf in his "Histoire de Charles X Gustave".