An outside handle apparatus for a vehicle may include a handle grip including a first locking part, a handle base, a handle lever having a second locking part and rotatably supported by an axis of the handle lever at one side of the handle base and moving in linkage with the handle grip while the second locking part formed at an lower end of the handle lever is locked with the first locking part of the handle grip, and an interference lever pivotally coupled to the handle base at one side of the handle base, wherein the interference lever rotates in linkage with a rotation of the handle lever at ordinary times, and is interlocked with the handle lever due to a rotation of the handle lever upon crash to control the rotation of the handle lever.