| Show Name: | Chain Reaction |
| Format: | Chat show |
| Runtime: | 30 minutes |
| Opentheme: | "I Do Not Fear Jazz" by Big Strides |
| Country: | United Kingdom |
| Language: | English |
| Home Station: | BBC Radio 4 |
| Website: | Chain Reaction |
Chain Reaction (nicknamed "the tag-team talk show") is a hostless chat show first broadcast on BBC Radio 5 in 1991, and then revived on BBC Radio 4 in 2004. Each week an individual from the world of entertainment selects someone that they would like to interview. This interviewee goes on to be the next week's interviewer.