Ajayan is an Indian surname, and may refer to
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Ajayan (director)
Ajayan, also known as Thoppil Ajayan, (8 April 1950 – 13 December 2018) was a Malayalam cinema, Malayalam film director who is of note for his only feature film Perumthachan (film), ''Perumthachan'' (''The Master Carpenter''). The film receiv ...
, director of the Indian film ''Perumthachan''
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Pulickel Ajayan, nanotechnologist and professor of materials science
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T. R. Ajayan, Indian literary and music critic
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Krishnan Nair Ajayan, Indian footballer
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Ajayan River, a river on Guam
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Ajayan Bay, a bay on Guam
{{surname
Indian surnames