Hi all, wanna ask, if I register my marriage at Singapore, is it recognize by Malaysia here?
If me and my wife both are Malaysian.

no unless you register your marriage on malaysia high comm

Malaysian whose marriage was solemnised by the Registry of Marriage (ROM) Singapore should report their marriage at the High Commission of Malaysia within the period of six months from the date of marriage.If registration is made after six months, a penalty of SGD 50.00 would be charged for the first year and SGD 20.00 for each subsequent year. All payments must be made in Singapore Dollar.

Hmm, what about interfaith marriages done overseas? Let's say, Muslim-Hindu marriage done in Indonesia/Singapore. Will Malaysia recognise that marriage?

This is more complicated. You might want to give a call to High Comm of Malaysia to find out the answer.

Thanks!