Yes, linen curtains do provide privacy, but the level depends on the type of linen and whether or not they are lined. Here's how it works: Sheer Linen Curtains: These are light and semi-transparent. They offer daytime privacy by softening outside views, but at night with indoor lights on, they may become see-through. They're perfect if you want a light, airy feel but not full privacy. Unlined Linen Curtains: Made with thicker linen fabric, these offer moderate privacy. They block partial views while still letting natural light in—ideal for living rooms where you want both brightness and some privacy. Lined or Blackout Linen Curtains: These are the best for maximum privacy. With a cotton or blackout lining, they prevent visibility from outside, day or night. Linen blackout curtains are perfect for bedrooms, media rooms, or homes close to the street. In summary: Yes, linen curtains do offer privacy, especially if you choose thicker fabric or add a lining. If full privacy is your priority, go for cotton-lined or blackout linen curtains. If you prefer soft light with partial privacy, sheer linen curtains are a beautiful option.