HOUSTON — Mitchell Robinson doesn’t know who legendary former Rockets center Hakeem Olajuwon is.

That’s OK. Hakeem “The Dream” now knows Robinson, who has set the Knicks rookie record for blocked shots in a season. Robinson also has at least two blocks in 27 straight games, second-longest streak for a rookie after Manute Bol.

Olajuwon, who works for the Rockets as an adviser/mentor, sat courtside for Friday’s Rockets’ blowout over the Knicks and came away swooning.

“I love his game,” Olajuwon told The Post. “He has a presence in the middle. He can close down the middle with his energy, skill level, how he moves. Not too many players have that impact as a shotblocker. On the court you know he is there. Fantastic player.”

When the praise was relayed to Robinson, the just-turned 21-year-old from Chalmette (La.) High, which is four hours from Houston, admitted he never heard of Olajuwon.

Robinson was 4 years old when Olajuwon retired in 2002. The young teammates surrounding Robinson in the locker room razzed him for not being up on his NBA history. Olajuwon used to run a big-man camp for all NBA players to work on their post game, but no longer can do so. He can mentor only Rockets players.

Friday was Robinson’s first meeting against Houston center Clint Capela, who missed the teams’ first game with an injury. After the draft in June, coach David Fizdale praised their new second-round pick as being “Capela-like.”

Robinson scored 12 points with nine rebounds and three blocks in 28 minutes. He would lead the NBA in shooting percentage (69.3 percent) if he had enough tries to qualify.

“I thought Mitch had a good showing against a big-time center in Clint Capela,’’ Fizdale said.

Robinson, who got outmuscled by center Nikola Vucevic in the prior game in Orlando, was impressed at least by Capela — if not Olajuwon’s praise.

Capela scored 12 points with 15 rebounds, possessing a similar game to Robinson’s in that he affects the game athletically on both ends but has no jump shot in the arsenal.

“He runs the floor hard and he has a real nice touch around the rim,’’ Robinson said. “It’s something I can learn to improve my game and continue to run with him.’’

Fizdale said he expects rugged PF Noah Vonleh (ankle bone bruise) to be done for the season. Vonleh will have missed the final 13 games. He finished with an 8.4 scoring average and 7.8 rebounds in 68 contests.

The 2014 lottery pick is an unrestricted free agent and probably has played well enough to earn a bigger contract than the league minimum, likely leaving the Knicks out of the hunt. He had slumped since February, particularly with his 3-point shot (33.6 percent). Earlier this season, Fizdale called Vonleh the team’s “most complete player.’’

Rookie Kevin Knox is the sixth teenager to sink more than 100 3-pointers in an NBA season. … Knicks face a franchise in more disarray than them in the Wizards, who fired former Knicks president Ernie Grunfeld this past week. Ex-Knicks GM Ed Tapscott was retained and will be at the Garden with the team as part of the transition.