Left-arm orthodox spin

Left-arm orthodox spin or left-arm off spin, also known as slow left-arm orthodox spin bowling, is a type of left-arm finger spin bowling in the sport of cricket. Left-arm orthodox spin is bowled by a left-arm bowler using the fingers to spin the ball from right to left of the cricket pitch (from the bowler's perspective).

Left-arm orthodox spin bowlers generally attempt to drift the ball in the air into a right-handed batsman, and then turn it away from the batsman (towards off-stump) upon landing on the pitch. The drift and turn in the air are attacking techniques. The stock delivery of a left-arm orthodox spin bowler is the left-arm orthodox spinner.

The major variations of a left-arm orthodox spin bowler are the topspinner (which turns less and bounces higher in the cricket pitch), the arm ball (which does not turn at all and drifts into a right-handed batsman in the direction of the bowler's arm movement; also called a 'floater') and the left-arm spinner's version of a doosra (which turns the other way).

Notable slow left-arm orthodox spin bowlers
Players listed below are included as they meet specific criteria which are generally recognised as having achieved significant success in the art of left-arm orthodox spin bowling. For example, leading wicket-takers, and inventors of new deliveries.
 * Rangana Herath – 433 Test wickets (highest by a left-arm spinner in all men's Tests) 74 ODI Wickets and 18 T20I Wickets
 * Sanath Jayasuriya – 98 Test wickets, 323 ODI wickets (highest by a left-arm spinner in all men's ODIs)
 * Daniel Vettori – 362 Test wickets and 305 ODI wickets
 * Derek Underwood – 297 Test wickets
 * Ravindra Jadeja – 294 Test wickets and 220 ODI wickets
 * Bishan Singh Bedi – 266 Test wickets
 * Shakib Al Hasan – 233 Test wickets, 317 ODI wickets and 140 T20I wickets (the 2nd highest in men's T20Is) and 317 ODI wickets
 * Ravi Shastri – 151 Test wickets
 * Keshav Maharaj – 158 Test wickets
 * Ashley Giles – 143 Test wickets
 * Taijul Islam – 192 Test wickets
 * Jess Jonassen – 141 ODI wickets and 96 T20I wickets
 * Sophie Ecclestone – 109 T20I wickets
 * Ajaz Patel – Only left-arm spinner to take 10 wickets in an innings of a Test Match
 * Monty Panesar – 167 Test wickets