Dennis Smith Jr., Elfrid Payton and Frank Ntilikina may have more than each other to worry about.

No, the Knicks aren’t making a trade for a point guard. But their top draft pick — RJ Barrett — could be another option to run the offense, at least in small doses.

“I’ve thrown him at that position a couple times already. He played some of that in college,” coach David Fizdale said. “I think it adds another layer to how dynamic he can be.”

Fizdale likes Barrett in that spot for a few reasons. At 6-foot-7, his size gives the Knicks switching options defensively they wouldn’t have with some of the other players. He also has been impressed by Barrett’s poise, unselfishness and patience, which would seem to translate well to him having the ball in his hands as a point forward.

“He understands — he knows our plays from that position,” Fizdale said Tuesday after practice at the MSG Training Center. “I feel very comfortable if I have to throw him there.”

Clearly, Fizdale is willing to be creative. Earlier in training camp, he mentioned the possibility of using offseason-addition Julius Randle as a point forward, too.

Barrett’s eyes lit up when asked about the possibility of him playing there, saying he “loved it.” He was used in a similar manner at Duke and thrived in his one year there, averaging 22.6 points and 4.3 assists, along with 3.2 turnovers. This would be different, playing the position in the NBA against bigger, quicker and longer defenders. But Barrett believes he could handle it.

“If I couldn’t [do it], I wouldn’t be here,” he said, flashing that confidence that has been a staple since the Knicks drafted him third overall. “I just like it. I can make plays for others while making plays for myself.

“I would definitely say that playmaking is one of my strengths and I’m going to try to keep picking my spots and try to continue doing what I do.”

Barrett said the Knicks offense is similar to the one he played in at Duke. There are a few sets they use to initiate offense, but it’s mostly reading and reacting to the defense and understanding the skill sets of his teammates. Fizdale is big on giving his players freedom to create for themselves and others, as is Mike Krzyzewski at Duke.

“It’s amazing to play for two coaches like that,” said Barrett, who is averaging 16 points, seven rebounds and two assists in the Knicks’ two preseason games.

Still, if it does happen once the regular season begins, it will be sprinkled in, Fizdale said. The Knicks don’t want to take away from what Barrett does best, which is scoring. While the coach said the competition for the starting point guard spot remains open, Barrett is excited to play with Smith, who could make his preseason debut Wednesday night against the Hawks at the Garden. The high-flying Smith has missed the first two games with a strained lower back.

“He’s been great. He’s definitely been helping me a lot,” Barrett said. “He’s always talking to me, trying to get me going. Just a great guy to play with and be around and we’re excited to have him back.

“It should be a lot of fun. He’s really athletic, I’m athletic. Getting up and down, we’ll have a great time.”