Clark Anthony Keating (born 19 March 1976) is a former Australian rules footballer in the Australian Football League.
Brisbane drafted Clark Keating from local club Surfers Paradise, and after a slow start to his career he developed into a vital component of the side that would go on to dominate the AFL competition during the early part of the 21st century. Initially used either as a tall option in the forward lines or as a back-up ruckman to Matthew Clarke, Keating truly came into his own after being handed the premier rucking role in 1999.
Tall and powerfully built at 200cm and 100kg, Keating knew how to use his weight and strength, and besides being a fine knock ruckman was instrumental in getting many Brisbane moves going by means of his strong work in the packs. He suffered a setback in the 2000 season when he was sidelines with knee tendinitis problems, but he returned in 2001 to produce arguably the best season of his career, culminating a rousing four quarter display in the Lions' Grand Final win over Essendon.
After missing most of the 2002 season with injury, Keating returned in September to play a notable part in Brisbane's second successive premiership victory, achieved by means of a Grand Final defeat of Collingwood when, with 39 hit-outs, he was arguably the most influential player afield. He was similarly effective at the end of another injury-interrupted season a year later as the Lions again downed Collingwood on Grand Final day to achieve a noteworthy hat-trick of premiership triumphs.
Keating made a fourth successive Grand Final appearance in 2004, but despite being arguably the game's outstanding ruckman could not prevent the Lions from succumbing to Port Adelaide. Two years later, Keating retired after playing 139 AFL games in 11 seasons, a tally that would have been considerably higher had he not been such a frequent victim of injury.