All 2,000 Australian sheep offered for this year's korban rites at 16 mosques have been taken up by members of the public.
The Singapore Mosques Korban Committee said in a statement on Monday that Muslims who still wish to perform the korban can do so with Canadian lambs, which are still available.
So far, only 120 out of 500 Canadian lambs have been sold.
The mosques which offer Canadian lambs priced at $757 each are Omar Salmah, An-Nur, Assyafaah, Al-Mawaddah and Haji Yusoff mosques.