The Dutchman is unwilling to criticise Chelsea for not offering Lampard a new deal, but is adamant the 34-year-old could continue be a key player.
"That's up to the club, but most clubs have someone who protects the culture of the club and, at Chelsea, Frank is one of those guys," Hiddink said.
"And although Frank is 34, he's still fit, still treats himself well. When I asked him once in training to stay off the pitch today and not play tomorrow because he was injured, he said 'No, boss, please, please, please'. So he's eager and looks after himself very well."