B737 Undifferentiated or Other Model
Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 127; Flight Crew Total 533; Flight Crew Type 533
Confusion; Situational Awareness
Conflict Ground Conflict; Critical; Flight Deck / Cabin / Aircraft Event Illness / Injury
Flight Crew Took Evasive Action
Human Factors; Procedure
We were cleared to taxi out for takeoff on Runway XXR via [Taxiway] 1; hold short of [Taxiway] 2. After stopping as directed; we were told to continue to Runway XXR on Taxiway 2. Around [Taxiway] 2X; a Regional Jet pushed back without warning from around gate XX or XY just in front of us. I made an abrupt stop.  My guess is they saw us stop before [Taxiway] 2; assumed we were going to stay there and prepared to push back without looking at us again. I called back to the purser to ensure everyone was okay. She stated that a Flight Attendant had hit the wall hard but was okay. We continued taxiing for takeoff.
B737 Captain reported an aircraft pushed back directly into their taxi path causing them to abruptly stop.