Grandis may refer to:

• Grandis (company), a technology company
• Grandis (surname)
• Eucalyptus grandis, a species of eucalyptus, also called flooded gum or rose gum
• Mitsubishi Grandis, a large multi-purpose vehicle
• Pizza Grandis, the most popular frozen pizza in Norway

subspecies and hybrids

• Dactylorhiza × grandis, an orchid hybrid between D. fuchsii and D. praetermissa found in Western Europe
• Orobanche californica ssp. grandis, a subspecies of the California broomrape, a plant native to western North America from British Columbia to Idaho to Baja California
• Strix ocellata ssp. grandis, a subspecies of the mottled wood owl, a large owl species found in India

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