To say ‘I am thirsty’ in Spanish, you would say ‘Tengo sed.’
‘Tengo’ translates to ‘I have,’ and ‘sed’ means ‘thirst.’ This phrase is commonly used in everyday conversation when you want to express your need for a drink or your desire to quench your thirst. If you’re in a situation where you find yourself feeling thirsty, this is the go-to expression in Spanish-speaking regions.