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