Aridius may refer to:

• Aridius, a fictional planet in Doctor Who
• Quintus Aridius Rufinus, a Roman consul of the early 3rd century

• A Place Called Today
• A Place For Us To Dream
• A Place for Us to Dream
• A Place Further than the Universe
• A Place Further Than The Universe
• A Place in the Sun (1951 film)
• A Place in the World (album)
• A Place in the World (The Black Sorrows album)
• A Place in Time (Amanda Abizaid song)
• A Place in Time (Bosshouse song)
• A Place in Time (song)
• A Place Near Heaven
• A Place of Rage
• A Place on Earth
• A Place on Earth (2013 film)
• A Place on Earth (disambiguation)
• A Place to Call Home (season 4)
• A Place to Call Home (season 5)
• A Place to Call Home (season 6)
• A Place to Fall
• A Place to Live (2018 film)
• A Place We Knew
• A Place We Knew (song)
• A Place Where There's No More Pain
• Aplagiognathus hybostoma