KP4, Kp4 or kp4 may refer to
*
Killer toxin Kp4 family, a family of killer toxins, which includes the Kp4 killer toxin from the smut fungus ''Ustilago maydis''
* KP4, an amateur radio call sign assigned to operators in Puerto Rico, see
Amateur radio licensing in the United States#Call signs
* ''
Witness
In law, a witness is someone who, either voluntarily or under compulsion, provides testimonial evidence, either oral or written, of what they know or claim to know.
A witness might be compelled to provide testimony in court, before a grand jur ...
'' (#KP4), Katy Perry's fifth studio album
See also
*
KP (disambiguation)
KP may refer to:
Businesses and organizations
* ''Komsomolskaya Pravda'', a daily Russian newspaper
* ''KP'' (newspaper), a Ukrainian newspaper
* KP Snacks, a United Kingdom food manufacturer
* Kaiser Permanente, a U.S. health maintenance organi ...
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