A godparent is not a specific defined role either in scripture, or any legal status, rights, or responsibilities in Canada. At points in history, it has had different responsibilities, but today is a historic and symbolic role within the church, and means different things to different people. In general, when you name a godparent as part of your Thanksgiving or dedication service, they are individuals who you, as parents, are asking them to step forward and publicly support and assist you in raising your child well. You are giving them permission to be a part of your child's life, and letting people know that they have a special role in your child's life. In the context of a dedication, this also includes committing to, as much as is possible, raise them in the Christian faith, and being trusted spiritual mentors to the child as they grow. You may choose to use different language to describe these people, including sponsor, guardian, etc. This is fine, but be aware, some of these things may have a different legal meaning. For example, a legal guardian has a different, and more specific legal role or responsibility, and naming someone a "guardian" in the context of a thanksgiving service or dedication will not grant them these rights and responsibilities, and you will still be responsible for ensuring that you complete the legal process to confer this upon them, if you desire for them to have these responsibilities. Likewise, while historically a godparent would be the individuals responsible for raising your child if you were to pass away, Canadian courts do not recognize this, and you would still need to specify this your will if you want this to be the case. You are not required to have godparent named as part of your thanksgiving, and there is no formal definition for who they can or should be, but if you do, you should discuss with them -- and us -- what you want their role and responsibility to be in your Childs life, so we can ensure that the service properly reflects this.