Henry Mayhew was an English journalist, playwright, and advocate of reform. He was one of the co-founders of the satirical magazine Punch in 1841, and was the magazine's joint editor, with Mark Lemon, in its early days. He is also known for his work as a social researcher, publishing an extensive series of newspaper articles in the Morning Chronicle that was later compiled into the three-volume book London Labour and the London Poor (1851), a groundbreaking and influential survey of the city's poor.

Punch, or The London Charivari was a British weekly magazine of humour and satire established in 1841 by Henry Mayhew and wood-engraver Ebenezer Landells. Historically, it was most influential in the 1840s and 1850s, when it helped to coin the term "cartoon" in its modern sense as a humorous illustration. Artists at Punch included John Tenniel who, from 1850, was the chief cartoon artist at the magazine for over 50 years.