Rethink (disambiguation)
Rethinking is the process of reviewing a decision or conclusion that has previously been made to determine whether the initial decision should be changed.

Rethink may also refer to:
Rethink (record label), American record label
Rethink Communications, Canadian advertising agency
Rethink Mental Illness, British mental health charity
Rethink Robotics, American robotics company
 ReThinking, a podcast by Adam Grant

See also 
 Think Twice (disambiguation)
 Think (disambiguation)