List of Breakfast Cereals - O

O

• Oatbake – Kellogg's (early 1990s)
• Oatmeal Crisp – General Mills (originally "Oatmeal Raisin Crisp", now in multiple varieties)
• Oatmeal Squares – Quaker Oats (originally or previously "Oat Squares", also "Cinnamon" version)
• Oat Bran Squares – Quaker Oats
• Oatibix – Weetabix Limited (2006 – present)
• Oat Crisp – Quaker Oats (Late 1990s?-Present) (replacement for Oat Krunchies)
• Oat Krunchies – Quaker Oats (1970s–late 1990s?) Mention Image)(replaced by Crisp then Oat Crisp)
• Oatmeal Cookie Crisp – Ralston (1979–1980)
• Oats & Honey Blend – Mom's Best Naturals
• Oh's - Quaker Oats Company (Mid 1980s)
• "oho!" breakfast cereals – Naujasis Nevežis (1991)
• O.J.s – Kellogg's (1980s)
• OKs – Kellog's (early 1960s)
• Oops All Berries – Quaker Oats (1997 – present) (Sporadic Availability)
• Optima Fruit & Fibre – see Fruit 'n Fibre
• Optivita – Kellogg's (Available in The UK)
• Orange Blossom – General Mills (1981)
• Organic Wild Puffs – Barbara's Bakery
• Oreo O's – Post Cereals (1998–2007) (Still available in South Korea)