Tremor is among the most common neurological syndromes and it is classified on purely clinical criteria until now. A major problem in the past was that there was no unified classification covering all different etiologies of tremor. Such a classification was developed in 1998 by the Movement Disorder Society. The present paper summarizes the definitions of this consensus statement, as well treatment options for different tremors. Based on clinical criteria, the following tremors have been differentiated: enhanced physiologic tremor, classical essential tremor, orthostatic tremor, task-specific tremor, dystonic tremor, Parkinsonian tremor, cerebellar tremor, Holmes’ tremor, drug or toxin-induced tremor, neuropathic tremor and psychogenic tremor.