Alligator Bayou is a Theodore, Alabama, neighborhood and part of the greater Mobile area. This neighborhood includes the area on the west side of Dauphine Island Parkway, including the shores of Dog River, reaching the distributary just beyond the end of Bayou Road. Here it follows the distributary south to Hollingers Island Road. The neighborhood encompasses nearly 2.36 square miles.
The population of Alligator Bayou is around 700. Most of the homes are located in the areas closest to the distributaries, with much of the rest occupied by local businesses and industries.
Dog River flows into Mobile Bay, and fishing and boating are a large part of the lifestyle in this area. Two marinas are located in this area to serve these needs. A quick trip to the waterfront may reveal anything from kayaks to sailboats and everything in between. Food and entertainment are easy to find for land lovers and water-dwellers alike.
Alligator Bayou has a long and interesting history, dating back as far as 6000 B.C. The late-1980s construction of a new bridge in the northeast corner of Alligator Bayou, at the confluence of Dog River and Mobile Bay, brought about archeologically significant findings in this area. Along with prehistoric discoveries, archeologists unearthed treasures from around the world, dating from several different eras and from a varied range of peoples. Remains of structures were even unearthed. The primary occupation of this site was found to be the Charles Rochon plantation, established in 1720. All in all, about 190,650 of these artifacts were found.