Isenburg-Neumagen
{{Refimprove|date=November 2024}}{{Short description|Historic Roman jurisdiction}}
{{Infobox country
| native_name = Isenburg-Neumagen
| conventional_long_name =
| common_name = Isenburg-Neumagen
| era =
| status =
| status_text =
| empire = Holy Roman Empire
| government_type = Monarchy
| event_start =
| date_start =
| year_start = 1502
| event_end =
| date_end =
| year_end = 1554
| year_exile_start =
| year_exile_end =
| event1 =
| date_event1 =
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| event5 =
| date_event5 =
| event_pre =
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| event_post =
| date_post =
| p1 = Lower Isenburg
| flag_p1 = CoA Lower-Isenburg.svg
| image_p1 =
| p2 =
| flag_p2 =
| p3 =
| flag_p3 =
| p4 =
| flag_p4 =
| p5 =
| flag_p5 =
| s1 = Sayn-Homburg
| flag_s1 =
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| capital = Neumagen-Dhron
| capital_exile =
| national_motto =
| national_anthem =
| common_languages =
| religion = Catholic
| demonym =
| currency =
| leader1 = Salentin VI
| leader2 = Henry
| leader3 =
| leader4 =
| year_leader1 = 1502–1534
| year_leader2 = 1534–1554
| year_leader3 =
| year_leader4 =
| title_leader = Count
| representative1 =
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}}
{{Coord|49|51|34|N|6|53|51|E|display=title}}
Isenburg-Neumagen was the name of a state of the Holy Roman Empire, seated in Neumagen-Dhron in modern Rhineland-Palatinate, Germany.
Isenburg-Neumagen was created on the partition of Lower Isenburg in 1502. There were only two counts of Isenburg-Neumagen, and at their extinction it passed to the Counts of Sayn-Homburg.