10 Herzogtum Lauenburg – Stormarn-Süd
Electoral district for the Bundestag
Herzogtum Lauenburg – Stormarn-Süd in 2025
State	Schleswig-Holstein
Population	319,600 (2019)
Electorate	246,277 (2021)
Major settlements	Ahrensburg Geesthacht Reinbek
Area	1,349.9 km2
Current electoral district
Created	1976
Party	SPD
Member	Nina Scheer
Elected	2021

Herzogtum Lauenburg – Stormarn-Süd (English: Duchy of Lauenburg – Stormarn-South) is an electoral constituency (German: Wahlkreis) represented in the Bundestag. It elects one member via first-past-the-post voting. Under the current constituency numbering system, it is designated as constituency 10. It is located in southern Schleswig-Holstein, comprising most of the Herzogtum Lauenburg district and southern parts of the Stormarn district.^[1]

Herzogtum Lauenburg – Stormarn-Süd was created for the 1976 federal election. Since 2021, it has been represented by Nina Scheer of the Social Democratic Party (SPD).^[2]

Herzogtum Lauenburg – Stormarn-Süd is located in southern Schleswig-Holstein. As of the 2021 federal election, it contains all of the Herzogtum Lauenburg district with the exception of the Amt of Berkenthin and the former Amt of Sandesneben (now part of Sandesneben-Nusse). It also includes the southern part of Stormarn district, specifically the Ämter of Siek and Trittau and the urban municipalities of Ahrensburg, Barsbüttel, Glinde, Großhansdorf, Oststeinbek, and Reinbek.^[1]

Herzogtum Lauenburg – Stormarn-Süd was created in 1976, replacing the abolished constituency of Stormarn – Herzogtum Lauenburg. Originally, it contained the entirety of the Herzogtum Lauenburg district, and a slightly larger part of the Stormarn distract. In the 2002 election, the Ämter of Berkenthin and Sandesneben were transferred to the Lübeck constituency, while the urban municipality of Ammersbek was transferred to the Segeberg – Stormarn-Nord constituency.

The constituency was held by the Christian Democratic Union (CDU) from its creation in 1976 until 1980, during which time it was represented by Olaf Baron von Wrangel. It was won by the Social Democratic Party (SPD) in 1980, and represented by Eckart Kuhlwein for a single term. Michael von Schmude regained it for the CDU in 1983, and served as its member until 1998. From 1998 to 2005, it was held by the SPD, during which time it was represented by Thomas Sauer. Carl-Eduard von Bismarck regained it for the CDU in 2005 and served for a single term, before being succeeded by party fellow Norbert Brackmann in 2009. He was re-elected in 2013 and 2017. Nina Scheer won the constituency for the SPD in 2021.

Federal election (2021): Herzogtum Lauenburg – Stormarn-Süd[3]
Notes:		Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively.
Party		Candidate		Votes	%	±%	Party votes	%	±%
	SPD	Nina Scheer		60,593	31.0	3.8	56,422	28.8	5.6
	CDU	Thomas Peters		51,872	26.6	12.9	45,364	23.2	11.2
	Greens	Konstantin von Notz		33,949	17.4	7.6	32,475	16.6	5.8
	FDP	Martin Turowski		20,550	10.5	2.3	27,725	14.2	0.5
	AfD	Wiebke Neumann		14,053	7.2	1.9	14,682	7.5	2.3
	Left	Christoph Hinrichs		5,168	2.6	2.5	6,325	3.2	3.3
	Tierschutzpartei						2,283	1.2
	FW	Christian Runge		3,517	1.8	0.7	2,204	1.1	0.5
	PARTEI	Arne Schönfelder		2,956	1.5		1,791	0.9	0.2
	dieBasis	Matthias Micklich		2,544	1.3		2,237	1.1
	SSW						1,746	0.9
	Team Todenhöfer						829	0.4
	Volt						447	0.2
	NPD						261	0.1	0.1
	ÖDP						217	0.1	0.1
	Humanists						160	0.1
	V-Partei3						155	0.1
	du.						105	0.1
	DKP	Peter Schlüter		125	0.1		82	0.0
	LKR						48	0.0
	MLPD						29	0.0	0.0
Informal votes				1,576			1,316
Total valid votes				195,327			195,587
Turnout				196,903	80.0	1.0
	SPD gain from CDU		Majority	8,721	4.4

Federal election (2017): Herzogtum Lauenburg – Stormarn-Süd[4]
Notes:		Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively.
Party		Candidate		Votes	%	±%	Party votes	%	±%
	CDU	Y Norbert Brackmann		75,737	39.5	5.7	66,031	34.4	6.2
	SPD	Nina Scheer		52,171	27.2	7.4	42,815	22.3	7.4
	Greens	Konstantin von Notz		18,688	9.7	2.7	20,826	10.8	1.7
	AfD	Bruno Hollnagel		17,435	9.1	4.5	18,792	9.8	4.2
	FDP	Bernd Klaus Buchholz[a]		15,775	8.2	6.1	26,163	13.6	7.6
	Left	Heidi Beutin		9,785	5.1	1.3	12,480	6.5	1.6
	PARTEI						2,110	1.1
	FW	Gregor Voht		2,174	1.1		1,264	0.7	0.2
	BGE						525	0.3
	NPD						492	0.3	0.5
	ÖDP						422	0.2
	MLPD						51	0.0	0.0
Informal votes				1,569			1,363
Total valid votes				191,765			191,971
Turnout				193,334	78.9	3.1
	CDU hold		Majority	23,566	12.3	1.7

Federal election (2013): Herzogtum Lauenburg – Stormarn-Süd[5]
Notes:		Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively.
Party		Candidate		Votes	%	±%	Party votes	%	±%
	CDU	Y Norbert Brackmann		81,954	45.2	5.3	73,603	40.6	7.4
	SPD	Nina Scheer		62,749	34.6	4.7	53,944	29.7	4.3
	Greens	Konstantin von Notz		12,774	7.0	3.5	16,579	9.1	3.3
	AfD	Axel Gehrke		8,351	4.6		10,210	5.6
	Left	Ilka Wenzelis		6,834	3.8	3.2	8,962	4.9	2.8
	FDP	Christel Happach-Kasan		3,901	2.2	9.0	10,878	6.0	11.2
	Pirates	Karsten Kiehn		2,908	1.6		3,031	1.7	0.2
	Tierschutzpartei						1,385	0.8
	NPD	Heinrich Förster		1,356	0.7	0.6	1,377	0.8	0.4
	FW						776	0.4
	Rentner						634	0.3	0.5
	Independent	Wolfgang Heimann		447	0.2
	MLPD						43	0.0	0.0
Informal votes				1,708			1,560
Total valid votes				181,274			181,422
Turnout				182,982	75.8	0.7
	CDU hold		Majority	19,205	10.6	0.6

Federal election (2009): Herzogtum Lauenburg – Stormarn-Süd[6]
Notes:		Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively.
Party		Candidate		Votes	%	±%	Party votes	%	±%
	CDU	Norbert Brackmann		70,874	39.9	4.5	59,075	33.1	4.1
	SPD	Gesa Tralau		53,073	29.9	14.2	45,354	25.4	10.3
	FDP	Christel Happach-Kasan		19,742	11.1	6.3	30,714	17.2	6.0
	Greens	Konstantin von Notz		18,761	10.6	5.5	22,240	12.5	3.3
	Left	Lorenz Gösta Beutin		12,351	7.0		13,855	7.8	3.4
	Pirates						3,248	1.8
	NPD	Kay Oelke		2,330	1.3	0.3	2,126	1.2	0.0
	Rentner						1,445	0.8
	VIOLETTEN	Achim Robert Keßler-Binder		553	0.3
	DVU						204	0.1
	MLPD						48	0.0	0.0
Informal votes				3,884			3,259
Total valid votes				177,684			178,309
Turnout				181,568	76.6	5.2
	CDU hold		Majority	17,801	10.0	9.7