The restrictions last from May - September but were not enforced last year due to lockdowns and the need for people be able to exercise locally.
They will come back into force on May 1 and affect Scarborough South Bay, North Bay, Whitby West Cliff, Filey and Sandsend beaches.
Dog owners face a fine if they break the rules.
The areas where dogs are not permitted will be clearly signposted at all beach access points.
Owners are also being reminded that they must, by law, clear up their dog’s mess and take away and dispose of the sealed bags. The law applies to all beaches and public places.
Breaches of dog bans can be dealt with by a fixed penalty notice of £75, but if prosecuted through the courts, the offences carry a maximum £1,000 fine.