Locard is a surname and may refer to:
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Arnould Locard
Étienne Alexandre Arnould Locard (8 December 1841 – 28 October 1904), usually known as Arnould Locard, was a French naturalist, malacologist and geologist.
His name can be abbreviated/spelled as Arnoul at plates, for example Crosse (1980). Cros ...
, Étienne Alexandre Arnould Locard (1841-1904), French malacologist
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Edmond Locard (1877–1966), French forensic scientist
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Locard's exchange principle, developed by Edmond Locard
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Simon Locard, 2nd of Lee (1300–1371), Scottish knight
{{disambiguation, surname