Samtgemeinde Wesendorf is a Samtgemeinde in the district of Gifhorn, in Lower Saxony, Germany. It is situated approximately 10 km north of Gifhorn. 14.576 citizens are living in the Samtgemeinde Wesendorf.

Structure of the Samtgemeinde
Municipality	Population (31 Dec 2003)	Area (km)	Population density	Villages
Groß Oesingen	2,029	57.44	35/km	Groß Oesingen, Klein Oesingen, Mahrenholz (Groß Oesingen), Schmarloh, Texas (Groß Oesingen), Zahrenholz
Schönewörde	983	17.73	55/km	Schönewörde
Ummern	1,593	40.32	40/km	Pollhöfen, Ummern
Wagenhoff	1,150	4.32	266/km	Wagenhoff
Wahrenholz	3,839	57.99	66/km	Betzhorn, Teichgut, Wahrenholz, Weißen Berge, Weißes Moor
Wesendorf	4,982	31.23	160/km	Wesendorf, Westerholz (Wesendorf)