Horopito may refer to:

• Horopito, the name of two plant species in the genus Pseudowintera in the Māori language
• Horopito, New Zealand, a location in the North Island of New Zealand

• Ethylbenzodioxylbutanamine
• Ethylbenzol
• Ethyl beta-alanate
• Ethyl butylacetylaminopropionate
• Ethyl carfluzepate
• Ethylcathinone
• Ethyl cellulose
• Ethylcellulose
• Ethyl centralite
• Ethyl chlorate
• Ethyl chloroformate
• Ethyl citrate
• Ethyldichlorarsine
• Ethyldichloroarsine
• Ethyl dichloroarsine
• Ethyldienolone
• Ethyl dimethylaminocyanophosphonate
• Ethyl dimethylphosphoramidocyanidate
• Ethyl dirazepate
• Ethyl (disambiguation)
• Ethyl eicosapentaenoate
• Ethyl eicosapentaenoic acid
• Ethylene aldehyde
• Ethylene bis(stearamide)
• Ethylene bromide