Some of them are not relevant because they refer to same sex couples, for example. But all the rest are discriminatory against trans people.
We are currently doing a human rights case to remove gender markers from the birth certificate altogether
But I thought you might be interested in the list. These laws each have a section which refers to "birth certificate" and either "gender" or "sex":
Vital statistics Act (no surprise there)
Adoption Act
Armoured Vehicle and After-Market Compartment control Regulation
Medical and Health Care Services Regulation
Security Services Regulation
Representation Agreement Act
Pension Benefits Standards Regulation
Adult Guardianship Act
Family Relations Act
National Instrument 33-09 Registration Information
Adult Care Regulations
Wills estates and succession Act
Family Maintenance Enforcement Act
College Pension Plan Regulation
Health Act Communicable Disease Regulation
Child Care Licensing Regulation
Minister's Athletic Commissioner Regulation
Security services Regulation
Morgage Brokers Act Regulations
Residential Care Regulation
The laws and regulations seem to use the terms 'sex' or 'gender' interchangeably.
There are a number of other laws or regulations which mention birth certificates, without specifying either 'sex' or 'gender'.