The Windpark Holtreim wind farm is a wind farm in Lower Saxony, Germany Constructed in 1998, Windpark Holtriem is one of the largest European windfarms, comprising thirty-three Enercon E-66 wind turbines. Holtriem is a low-lying area adjacent to the North Sea in East Frisia (Lower Saxony, Germany).

One wind turbine, situated at 53°34′52″N 7°28′31″E / 53.58111°N 7.47528°E / 53.58111; 7.47528 is equipped with an Observation deck open to visitors, at a height of 63 metres. It can be reached by 297 stairs.

• List of towers

• http://wind.wolfgang-janssen.de
• Holtriem E-66 Wind Power Plant at Structurae
• http://skyscraperpage.com/diagrams/?b57804