| Age | 50 (age at death) |
| Birthday | 24 November, 1863 |
| Birthplace | Budzieszowce, Poland |
| Died | 28 August, 1914 |
| Place of Death | Heligoland, Germany |
| Hair Color | Brown - Light |
| Zodiac Sign | Sagittarius |
| Nationality | German |
| Occupation | Military |
Leberecht Maass (or Maaß) (24 November 1863 – 28 August 1914) was the Konteradmiral who commanded the German naval forces at the first Battle of Heligoland Bight. He lost his life when his flagship, the light cruiser SMS Cöln, was sunk by British battlecruisers commanded by Vice Admiral David Beatty.
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