This Man Is Dangerous may refer to:
*
This Man Is Dangerous (1941 film)
''This Man Is Dangerous'' (U.S. title: ''The Patient Vanishes'' and ''Death Cell'') is a 1941 British thriller film, directed by Lawrence Huntington and starring James Mason and Gordon McLeod. The film is based on the 1934 novel ''They Called ...
, a British thriller film
* This Man Is Dangerous (1953 film), a French thriller film based on the novel
* This Man Is Dangerous (novel), a 1936 novel by Peter Cheyney
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