Bilic, 30, has spent the last six seasons with the Rush, helping the team win three National Lacrosse League (NLL) championships.
He appeared in 88 regular season games with the Rush and 13 playoff games, with 16 goals, 42 assists, 371 loose balls and 110 caused turnovers.
In 16 games during the 2018-19 season, Bilic had five assists and 61 penalty minutes.
“Nik is gritty, speedy and hard to play against; he makes our team better instantly,” Warriors head coach Chris Gill said Monday about the Burnaby, B.C., native.
“We look forward to Nik joining Vancouver and being a big part of our defense.”
READ MORE: Saskatchewan Rush sign 2 homegrown players
The Rush will receive a 2nd round pick in the 2020 NLL Entry Draft for Bilic.
The Warriors had acquired the pick earlier in the day from the New England Black Wolves in exchange for forward Anthony Malcom.