Janus is a surname. Notable persons with the surname include: Ed Janus (born 1945), American baseball and beer promoter Goran Janus (born 1970), Yugoslav and Slovenian ski jumper Jadwiga Janus (1931–2019), Polish sculptor Jill Janus (1975–2018), American heavy metal singer Joseph Janus (born 1969), American advertising executive and businessman Krzysztof Janus (born 1986), Polish footballer Marjan Janus (born 1952), Dutch swimmer Mark Janus, American plaintiff Martin Janus (1620–1682), German church musician, minister, hymn-writer Michael Janus, American politician Patricia Janus (1932–2006), American poet, artist, and educator Paul Janus (born 1975), American football player Samantha Janus (born 1972), English actress Samuel Janus (born 1930), American psychotherapist Stefan Janus (1910–1978), Polish flying ace Tim Janus (born 1976), American competitive eater
See also Januš Hugh Janus, a gag name