Kathryn Grant may refer to:
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Kathryn Crosby (1933–2024), American actor who also used the stage name Kathryn Grant
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Kathryn Ptacek
Kathryn Grant, née Ptacek (born September 12, 1952) is an American writer and editor. Since 1981, she has published science fiction, fantasy, horror, suspense, and romance short stories and novels under her maiden and married names, and under ...
(born 1952), American author who also wrote under her married name, Kathryn Grant
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Katherine Grant, 12th Countess of Dysart (1918–2011), Scottish peer
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Cat Grant, fictional DC Comics character
{{Hndis, Grant, Kathryn