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Siege of Trebizond
Part of the Byzantine-Seljuk wars
Date 1205 - 1206 Location Trabzon, Pontus Result Byzantine victory; Seljuks fail to take the capital.
Belligerents
Byzantine Empire	Great Seljuk Sultanate
Commanders
Alexios I of Trebizond	Kaykhusraw I
Strength
Unknown	Unknown
Casualties and losses
Unknown	Unknown

v • d • e Byzantine-Seljuk wars Kapetrou – 1st Manzikert – Caesarea – Iconium – 2nd Manzikert – 1st Nicaea – Antioch – Seljuk Campaigns in the Aegean – 2nd Nicaea – 3rd Nicaea – Philomelion – Campaigns of John I Komnenos – Myriokephalon – Hyelion and Leimocheir – Cotyaeum – Trebizond – Antalya – Battle of Antioch on the Meander

The Siege of Trebizond in 1205 to 1206 was an attempt by the Seljuk Sultanate of Rûm to take the city along the coast of the Black Sea. Prior to this, the Seljuks had successfully taken cities in Western Asia Minor and from their Danishmend rivals. The Turks failed to capture the city. In the end, Kaykhusraw I turned his attention against the Nicaean Empire and also seized Antalya.