Birchibald "Birch" T. Barlow (simply known as Birch Barlow) is a villain from The Simpsons series. He is a right-wing conservative talk show host on the radio station KBBL. He also has a show on Fox News.
On air (and presumably personally), he is a radical conservative, highlighted by his book, "Only Turkeys Have Left Wings". His on air rantings are intentionally engineered to be controversial and to rile up the audience, in order to convince them to call, as do many talk back radio hosts. On his radio show, he declares himself to be "the fourth branch of government" and "the 51st state".
Barlow was instrumental in getting Sideshow Bob released, due to sympathy to Bob as well as believing his story about being framed. He also ended up "accused" by Lisa of being the true mastermind behind Bob with the implication of Bob simply being a puppet Mayor in order to trick Bob into confessing to some of his crimes in court (with Birch Barlow also trying to dissuade the shocked audience in regards to the accusation).
- Birch Barlow is a parody of the stereotypical right-wing political commentator. Barlow's voice and appearance is modeled after commentator Rush Limbaugh. He has also been a customer at Marge's prescription drug-laden "yard sale", a reference to Limbaugh's Oxycontin addiction scandal.
- In The Simpsons Guide to Springfield, despite his ultra-conservative views, he was shown having dinner at the Shaboom-Kaboom Cafe with Smithers, John, and Buddy Hodges.