The Bremerhaven Lighthouse, also known as the Simon Loschen Tower or Loschen Lighthouse, is the rear light of a pair of leading lights at the New Harbour of Bremerhaven, Germany.

It is the oldest operative lighthouse on the mainland along Germany's North Sea shore and is counted among the city's landmarks.

From 1853 to 1855 the lighthouse was built in the style of northern German Brick Gothic at the northern side of the harbour's lock from 1852, using plans by architect Simon Loschen from Bremen.

For the upstream range that is still in use today, the tower still serves as the rear light.

The corresponding front light Unterfeuer Bremerhaven is situated in a small red and white lighthouse on the southern pier of the lock, also called "the minaret" by locals.