Roger Forster may refer to:

• Roger T. Forster (born 1933), theologian and leader of Ichthus Christian Fellowship
• Roger Forster (actor), see The Rules of the Game
• Roger Forster (MP) for Lewes (UK Parliament constituency) 1406-1407

• Hellinsia grandis
• Hellinsia gratiosus
• Hellinsia griseodactylus
• Hellinsia gypsotes
• Hellinsia habecki
• Hellinsia haplistes
• Hellinsia harpactes
• Hellinsia hebrus
• Hellinsia helianthi
• Hellinsia hoguei
• Hellinsia hololeucos
• Hellinsia hololeucus
• Hellinsia homodactyla
• Hellinsia homodactylus
• Hellinsia huayna
• Hellinsia ignifugax
• Hellinsia illutus
• Hellinsia improbus
• Hellinsia inconditus
• Hellinsia innocens
• Hellinsia inquinatus
• Hellinsia integratus
• Hellinsia inulae
• Hellinsia inulaevorus
• Hellinsia investis