{| align="right" class="toccolours"
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|colspan=2 align="center" |<big>Isenburg-Isenberg</big>
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|colspan=2 align="center" |
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|colspan=2 align="center" |1137 - 1199
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|<br>
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|width=138px| Capital<br>Circle<br>Bench
|width=138px| Isenburg<br>none<br>none
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|Partitioned from Niederlahngau
|1137
|-
|Partitioned
|1210
|-
|}
Isenburg-Isenburg was the name of a state of the Holy Roman Empire, based around Isenburg in modern Rhineland-Palatinate, Germany. It was created as a partition of the Niederlahngau in 1137. It partitioned into Lower Isenburg and Isenburg-Braunsberg in 1210.
{| class="wikitable"
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!width=400px|
Name
!width=70px|
Reign
|-
|Rembold IV||1137 - 1162
|-
|Rembold V||1152 - 1195
|-
|Bruno I||1152 - 1199
|-
|}