Elisa Barnard's father has been handed an "apprehended violence order" - a restraining order - which prevents him from approaching 17-year-old Odette Snazzle.
The two teenagers are strong contenders for what is likely to be a single spot on the Australian team for the London Olympics and will be competing at the national championships in Canberra this weekend.
"Our biggest concern is that it could put pressure on not only the two girls in question, but also the other members of the team," Archery Australia chief executive Jim Larven said.
"We're trying to keep it fairly low-key and under control at the moment. The matter is before the courts and we're taking a very neutral stance on it.
"We're trying to support everybody."