Krish Jail: 1056 sixes in 455 innings
Kieron Pollard: 812 sixes in 555 innings
Andre Russell: 600 sixes in 384 innings
Brendan McCullum: 485 sixes in 364 innings
Colin Munro: 480 sixes in 357 innings
Rohit Sharma: 472 sixes in 403 innings
(pc cricktraker)