19 June] 1884), better known as Eduard Totleben in English, was a Baltic German military engineer and Imperial Russian Army general.

He saw active service as captain of engineers in the campaigns against Imam Shamil in the Caucasus, beginning in 1848 for two years.

In September 1854, an Anglo-French-Ottoman army landed in the Crimea with the aim of taking Sevastopol, the principal base of the Russian Black Sea fleet.

On his advice the Black Sea fleet was sunk, in order to block the mouth of the harbour, and the deficiency of fortifications on the land side was made good before the allies could take advantage of it.

Totleben originated the idea that a fortress should be considered not a walled town but an entrenched position, intimately connected with the offensive and defensive capacities of an army and as susceptible to alteration as the formation of troops in battle or manoeuvre.

In 1860 Totleben was appointed assistant to Grand Duke Nicholas, and he subsequently became head of the department of engineers with the full rank of general.

The village of Totleben in Pordim Municipality, Pleven Province, is named after him, in honour of his decisive role in the Siege of Plevna of 1877.