Niche may refer to:

• Niche (architecture), an extra or a space that has been reduced in size
• Ecological niche, a term describing the relational position of a species
• Niche market, a focused, targetable portion (subset) of a market sector
• Niche, a sub-genre of UK garage music
• Niche Science & Technology A healthcare communications company

cs:Nika (rozcestník) da:Niche de:Nische fr:Niche no:Nisje pt:Nicho (desambiguação) ru:???? (????????) sk:Nika fi:Niche sv:Nisch