Date: 201705
Local time of day: 0001-0600
Location: EWR.Airport, NJ
Flight conditions: VMC
Light: Night
Aircraft: B757 Undifferentiated or Other Model
Operator: Air Carrier
Operating under: Part 121
Flight plan: IFR
Mission: Passenger
Flight phase: Taxi
ATC / advisory: Ground EWR
Second aircraft: Large Transport; Low Wing; 2 Turbojet Eng
Reporter organization: Air Carrier
Reporter function: Captain; Pilot Flying
Reporter qualification: Flight Crew Air Transport Pilot (ATP)
Second reporter function: First Officer; Pilot Not Flying
Anomaly: ATC Issue All Types; Conflict Ground Conflict; Critical; Deviation / Discrepancy - Procedural Published Material / Policy
Detector: Person Flight Crew
When detected: Taxi
Contributing factors: Human Factors
Primary problem: Human Factors

Narrative: Pushed off gate. Called ramp for taxi. Ramp Control said hold short of RG and call ground. We called ground for taxi - ground instructed us to taxi to runway 22R at W via Taxiways J and R.We started our taxi and crossed the RG threshold and our nose began to cross Taxiway A. Then ground amended our clearance for us to give way to Aircraft Y on taxiway S.  I stopped the aircraft and set the parking brake since Aircraft Y was a good distance away on S. If you reference EWR 10-9 taxi chart you will see to remain clear of taxiway S you must block taxiway A.Taxiing on A towards RG was a 737; but still a good safe distance from our position. Since our aircraft was well beyond the RG threshold breaching onto Taxiway A both the FO and myself believed the 737 would stop as it was abundantly clear our nose was protruding the outer edge of taxiway A.However; the 737 continued to head right towards us. At this point the Ground Controller was talking almost continuously. It was now apparent to the both of us the 737 was NOT going to stop and was continuing to taxi at a normal speed as the 737 didn't appear to be slowing down at all. I flashed my landing lights several times and also transmitted on ground control several times to Stop; Stop; Stop; Stop! The 737 stopped and was very close to us. From our vantage point it appeared if they had continued to taxi their left wingtip may have impacted our aircraft; it was close. Ground Control again was talking almost continuously. At this point I was making numerous hand signals to the 737 CA; (I could easily see the 737 captain and it appeared he could see me) to not taxi and I gave him a thumbs down indicating my extreme displeasure at his close proximity to our aircraft. The Ground controller was still talking continuously. A few seconds later Ground did ask if we could move. I stated we could not and our position was too close to the 737. The 737 then said they could clear us. I again gave hand signals to the 737 CA not to taxi including a thumbs down. The ground controller again began talking continuously and I couldn't get a word in on the frequency and frankly I was shocked the 737 would even attempt to continue taxiing. The 737 made a sharp tight turn to it's right and continued taxiing even though I believe the Captain saw I was making hand signals (including a thumbs down) to not taxi!The 737 winglet cleared our nose in my estimation by 5 to 10 feet. It was very close and in my opinion if he hadn't stopped and made a tight turn to its right the 737 may have impacted our aircraft. Because of all the continuous Ground Controller frequency clutter we never heard the 737 flight number.In hindsight looking back; we followed the ground Controller instructions exactly as instructed. The Ground Controller was very busy and I'm not sure if the 737 was in fact told to hold short of RG. I'm also not sure from the ground controller's vantage point if he could clearly see our position was partially blocking taxiway A at RG. However; I am 100% sure the 737 could clearly see from their vantage point our nose was protruding past RG onto Taxiway A and no matter what their clearance was; we were blocking Taxiway A and they absolutely needed to stop.Both myself and the FO were shocked the 737 would even attempt such a maneuver; due to the close proximity of their left wingtip to our aircraft and given we had a much better view from our vantage point. In my opinion if the 737 hadn't stopped and didn't make a slow deliberate tight turn to their right; it was very possible they could have impacted our aircraft.


Second narrative: [Report narrative contained no additional information.]


Synopsis: B757 Crew reported another commercial aircraft came within 10 feet of the aircraft nose while holding on a taxiway at EWR.