Onawa IOOF Opera House

{{Use mdy dates|date=March 2025}}

{{Infobox NRHP

| name = Onawa IOOF Opera House

| nrhp_type =

| image =ONAWA IOOF OPERA HOUSE, MONONA COUNTY, IOWA.JPG

| caption =

| location= 1023 Tenth Ave.
Onawa, Iowa

| coordinates = {{coord|42|01|32.2|N|96|05|48.7|W|display=inline,title}}

| locmapin = Iowa#USA

| built = 1900

| architect = W.E. Hodgin

| architecture = Romanesque Revival

| added = August 3, 1990

| area = less than one acre

| refnum = 90001194{{NRISref|2009a}}

}}

The Onawa IOOF Opera House, also known as the Onawa Opera House, is a historic opera house located in Onawa, Iowa. It was completed in November, 1900, only to be heavily damaged in a fire a month later, on December 24, 1900.{{cite web|url={{NRHP url|id=90001194}}|title=National Register of Historic Places Registration: Qnawa IQOF Opera House / Qnawa Opera House |publisher=National Park Service|accessdate=2016-06-28 |author=Tracv Ann Cunning |date=May 31, 1990}} with {{NRHP url|id=90001194|photos=y|title=six photos from 1989}}

It has been deemed historically significant as the building most strongly associated Onawa's "strong tradition of live-stage entertainment" from the late 1880s to the mid-1920s, involving three structures.{{rp|12}}

It was listed on the National Register of Historic Places in 1990.