10 (1) Subject to subsections (2), (4) and (5), a child whose birth is certified under section 9 shall be given at least one forename and a surname. 2016, c. 5, Sched. 33, s. 1 (1). Exception (2) A child whose birth is certified under section 9 need not be given a forename if the Registrar General is satisfied that, (a)  the child’s sex is undetermined; (b)  every consent required by the Child, Youth and Family Services Act, 2017 for the child’s adoption has been given or dispensed with; or (c)  the child has died.  R.S.O. 1990, c. V.4, s. 10 (2); 2017, c. 14, Sched. 4, s. 35 (1). How child’s surname determined (3) A child’s surname shall be determined as follows: 1.  If both parents certify the child’s birth, they may agree to give the child a surname chosen by them. 2.  If both parents certify the child’s birth but do not agree on the child’s surname, the child shall be given, i.  the parents’ surname, if they have the same surname, or ii.  a surname consisting of both parents’ surnames hyphenated or combined in alphabetical order, if they have different surnames. 3.  If one parent certifies the child’s birth and the other parent is incapable by reason of illness or death, the parent who certifies the birth may give the child a surname chosen by that parent. 4.  If the mother certifies the child’s birth and the father is unknown to or unacknowledged by her, she may give the child a surname she chooses. 5.  If a person who is not the child’s parent certifies the child’s birth, the child shall be given, i.  the parents’ surname, if they have the same surname, ii.  a surname consisting of both parents’ surnames hyphenated or combined in alphabetical order, if they have different surnames, or iii.  if only one parent is known, that parent’s surname.  R.S.O. 1990, c. V.4, s. 10 (3); 1994, c. 27, s. 102 (6); 2016, c. 5, Sched. 33, s. 1 (2); 2016, c. 23, s. 18 (3, 4, 7, 8). How child’s surname determined if more than two parents (3.1) If a child has more than two parents, subsection (3) does not apply, and the child’s surname shall be determined as follows: 1.  If two or more parents certify the child’s birth, they may agree to give the child a surname chosen by them. 2.  If any of the parents are incapable of certifying the child’s birth by reason of illness or death, i.  the remaining parents who certify the child’s birth may agree to give the child a surname chosen by them, or ii.  if there is only one remaining parent who certifies the child’s birth, that parent may determine the child’s surname. 3.  If two or more parents certify the child’s birth but do not agree on the child’s surname, the child shall be given a surname consisting of each of the certifying parents’ surnames hyphenated or combined in alphabetical order, except that if any of those parents share a surname it shall be used only once. 4.  If a person who is not the child’s parent certifies the child’s birth, the child shall be given the surname of the person who gave birth to the child. 2016, c. 23, s. 18 (10). Single name (4) A child may be given a single name that is determined in accordance with the child’s traditional culture if, (a)  the person or persons giving the single name to the child provide the Registrar General with the prescribed evidence, if any; and (b)  the Registrar General approves the single name. 2016, c. 5, Sched. 33, s. 1 (3). Who chooses single name (5) The single name shall be the single name chosen by, (a)  the child’s parents, if they each certify the child’s birth and agree on the name; or (b)  the person who certifies the child’s birth, if only one person certifies the child’s birth. 2016, c. 5, Sched. 33, s. 1 (3); 2016, c. 23, s. 18 (11). Section Amendments with date in force (d/m/y) 1994, c. 27, s. 102 (6, 7) - 25/05/2007 2016, c. 5, Sched. 33, s. 1 (1-3) - 01/01/2017; 2016, c. 23, s. 18 (1, 2, 5, 6, 9) - no effect; 2016, c. 23, s. 18 (3, 4, 7, 8, 10, 11) - 01/01/2017 2017, c. 14, Sched. 4, s. 35 (1) - 30/04/2018