Walliser may refer to:

• people from the Swiss canton of Valais (German: Wallis)
• Pennine Alps (German: Walliser Alpen)
• Walliser German, an Alemannic dialect spoken in Valais and other regions of the Alps
• Cole Walliser (born 1981), a Canadian filmmaker and music video director
• Maria Walliser (born 1963), a Swiss former alpine skier
• Ursi Walliser (born 1975), a Swiss skeleton racer