Term deposits are generally available for customers aged over 18, although some financial institutions allow children to have a term deposit from the age of 12 or 13.  However, these are in the minority, so if you’re after a kid’s term deposit you may have to search around.
There are also term deposits available for couples, businesses and self-managed super funds (SMSFs).  These term deposits are available for the same terms and with similar interest rates as standard term deposits, although SMSF term deposits are geared towards higher deposit sums and longer investment periods and can have slightly higher interest rates than those offered to personal savers.