Baius may refer to:

• Michael Baius, Catholic theologian
• Băiuş, a village in the Leova district, Moldova
• Baius ({{lang-grc-gre|Βαῖος}}, Baîos), Odysseus's helmsman in Homer's Odyssey, namesake of Baiae

• Everyone Should Be Killed
• Everyone's Internet
• Every Picture Tells a Story
• Every Picture Tell's A Story
• Every Picture Tells A Story
• Every Rose Has Its Thorn
• Everything 2
• Everything2.com
• Everything and More (book)
• Everything Beautiful Is Far Away
• Everything but Arms
• Everything but the Girl
• Everything (disambiguation)
• Everything Ecstatic
• Everything, everything
• Everything, Everything (album)
• Everything Everyway
• Everything Goes (film)
• Everything Goes Numb
• (Everything I Do) I Do It For You
• Everything I Do (I Do It For You)
• Everything I Do (I Do It for You)
• (Everything I Do) I Do It for You
• Everything in its Right Place
• Everything in Time