Source: The Great Interpretation of Dreams (Ibn Sirin)
A lizard in a dream is a slandering man who corrupts relations between people. It is an enemy that does not harm.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
A lizard indicates a sick man. Killing it indicates the recovery of the sick.
Source: Signs in the Science of Expressions (Ibn Shaheen)
A lizard is interpreted as worry. Whoever sees himself killing it, his worry will vanish.