| Unit Pref: | Imperial |
| Settlement Type: | Township |
| Official Name: | Port Byron Township |
| Image Map1: | Map of Illinois highlighting Rock Island County.svg |
| Mapsize1: | 150px |
| Map Caption1: | Rock Island County's location in Illinois |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Rock Island |
| Leader Title: | Supervisor |
| Established Title: | Established |
| Established Date: | November 4, 1856 |
| Area Total Sq Mi: | 5 |
| Area Land Sq Mi: | 3.55 |
| Area Water Sq Mi: | 1.45 |
| Area Water Percent: | 29.00 |
| Population As Of: | 2010 |
| Population Density Sq Mi: | 407.3 |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Pop Est As Of: | 2016 |
| Pop Est Footnotes: | [1] |
| Population Est: | 1428 |
| Blank Name: | FIPS code |
| Blank Info: | 17-161-61236 |
Port Byron Township is located in Rock Island County, Illinois. As of the 2010 census, its population was 1,446 and it contained 704 housing units.[2] Located on the Mississippi river. The major business is Sandstrum Industries with John Deere 15 minutes down state Hy 84 to the south. The John Deere corporate headquarters is in Moline 20 minutes south. Locally Port Byron has six bars and restaurants from fine dining to burgers and chili. Located 2 miles north of the Interstate 80 bridge over the Mississippi River on Illinois route 84, Port Byron is also on the Mississippi River Flyway for migrating birds. Thousands of species can be seen as they travel from Canada to the Gulf Coast espiecally the Pelicans in summer and the Eagles in winter.
According to the 2010 census, the township has a total area of, of which (or 71.00%) is land and (or 29.00%) is water.[2]