Scarlet Knight may refer to:
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Rutgers Scarlet Knights, the Rutgers University athletic teams
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RU-27
RU-27, dubbed ''Scarlet Knight'' after the Rutgers Scarlet Knights athletic teams, is an experimental American autonomous underwater vehicle – a modified Slocum Autonomous Underwater Gliding Vehicle – operated by Rutgers University ...
, an experimental robot submersible named after the teams
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"Scarlet Knight" (song), the 23rd single by Japanese singer and voice actress Nana Mizuki
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