Catastrophe is a British television sitcom first broadcast on 19 January 2015 on Channel 4. It is created, written by, and stars Sharon Horgan and Rob Delaney, who portray single people Sharon and Rob who become a couple after Sharon unexpectedly becomes pregnant following a fling while Rob is visiting London on a business trip. Carrie Fisher, Ashley Jensen and Mark Bonnar play supporting characters in the series.The show was renewed for a second series in January 2015 and began broadcasting from 27 October 2015, having been brought forward from its original schedule of early 2016. In July 2016, Catastrophe was renewed for a third and fourth series. The third series, which began broadcasting in the UK on 28 February 2017, comprises six episodes — which all became available in the United States on 28 April 2017, hosted by Amazon. The fourth and final series of the show began broadcasting on 8 January 2019; premiering on March 15, 2019, in the US.

For her performance in the show, Sharon Horgan was nominated for a BAFTA Award for Best Female Comedy Performance in 2016. Both Horgan and Delaney won the BAFTA TV Award for Best Writer: Comedy. The show was nominated for a Peabody Award. In July 2016, the show received a Primetime Emmy Award nomination for Outstanding Writing For a Comedy Series for Horgan and Delaney.