Stroma may refer to:

• Stroma (tissue), the connective, functionally supportive framework of a biological cell, tissue, or organ (in contrast, the parenchyma is the functional aspect of a tissue)
  • Stroma of ovary, a soft tissue, well supplied with blood, consisting of spindle-shaped cells with a small amount of connective tissue
  • Stroma of iris, fibres and cells in the iris
  • Stroma of cornea, plates of collagen fibrils in the cornea
  • Lymph node stromal cell, cells which provide a scaffold for other lymph node cells
  • Stroma of bone marrow
  • Stroma (fungus), a tissue structure of some ascomycete mushrooms
• Stroma (fluid), the fluid between grana, where carbohydrate-forming reactions occur in the chloroplasts of photosynthetic plant cells
• Stromal cell, a connective tissue cell of any organ; supports the function of the parenchyma
• The nonmalignant cells which are present in the tumor microenvironment; see Tumor microenvironment § Stromal cells

• Freddie Stroma (born 1987), British actor known for playing Cormac McLaggen in Harry Potter and the Half-Blood Prince
• Stroma Buttrose (born 1929), Australian architect

• Stroma (musical group), a New Zealand chamber music ensemble
• Island of Stroma, a now uninhabited island off the northern coast of Scotland

• Stromae (born 1985), Belgian singer
• Struma (disambiguation)
• Stromatolite, layered sedimentary structure formed by the growth of bacteria or algae
• Stromer (disambiguation)