Seebek

{{short description|River in Germany}}

{{Unreferenced|date=June 2019|bot=noref (GreenC bot)}}

{{Infobox river

| name = Seebek

| image = Aue der Seebek als Grenzbach zwischen Hamburg-Barmbek-Nord und Hamburg-Bramfeld.jpg

| image_size =

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| image_caption = The Seebek on the boundary of the Barmbek and Bramfeld districts of Hamburg

| map =

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| source1_location = Bramfelder See

| mouth_location = Osterbek

| mouth_coordinates = {{coord|53.5900|N|10.0654|E|source:wikidata|display=it}}

| progression = Osterbek→ {{RAlster}}

| subdivision_type1 = Country

| subdivision_name1 = Germany

| subdivision_type2 = State

| subdivision_name2 = Hamburg

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The Seebek is a small stream in Hamburg, Germany, which flows from the lake of the Bramfelder See in a southerly direction.

After about 3 kilometres it discharges into the Osterbek. The stream is also known locally as the Grenzbach ('border stream' - it forms the boundary between Bramfeld and Barmbek in Hamburg) has a good water quality. In the 1980s the streambed was largely returned to a near-natural condition after it had previously largely degenerated into a concrete drainage ditch. Today the stream provides an outstanding habitat for many small animals. The process of renaturisation had not finished; since March 2005 NABU has run Project Eisvogel (Eisvogel = 'kingfisher') especially to improve the water flow through the Seebek.

Since 1959 Seebek has also been the name of an Alster steamer.