text: what is the longest droping waterfall in the world? please note this is a very techincal question there should only be one answer angel falls located in the guyana highlands in the canaima national park, venezuela.  this is the highest waterfall in the world at 3212 feet (979 metres) and also has the longest single drop at 2648 feet (807 metres).  ---------------------  added later  if you mean the worlds highest waterfall that consists of just one single drop then it's the 2600ft (798m) waihilau falls in hawaii.