In a medium-sized bowl, beat 1 (8-ounce) package softened cream cheese and ½ cup sour cream until smooth.
Mix in 2 tablespoons ranch seasoning and 1 tablespoon fresh dill until combined. Stir in 1 finely diced cucumber until evenly mixed.
Stir in the diced cucumber until evenly mixed. Serve immediately or chill for 1 hour to allow the flavors to meld together. Chilling helps the dip to thicken slightly.