Marius Barnard (born 20 January 1969) is a retired South African tennis player, who delivers Executive Coaching to CEOs, MDs, Directors, and other business leaders. He specialises in shifting mindsets, performance coaching, managing pressure, building self-belief, and utilising Positive Intelligence tools. As a business and psychology graduate, he started coaching tennis players, cricketers, and golfers in 2002. He converted to Executive Coaching in 2019 and became an EMCC Senior Practitioner in March 2021. As a tennis professional, he was more successful in doubles on the ATP Tour and played in Grand Slams for more than a decade. In his career, he won six titles on the ATP Tour, reached eight finals as well as the quarter-finals of Wimbledon and the Australian Open.

Performance timelines

Singles

Doubles

ATP Career Finals

Doubles: 14 (6 titles, 8 runner-ups)

ATP Challenger and ITF Futures finals

Doubles: 9 (5–4)