His 40th career success also matched the record five Portugal wins of Finn Markku Alén.
Ogier, who scored his maiden WRC win in Portugal seven years ago, took the lead of the four-day dirt road encounter on Saturday morning in his Ford Fiesta.
Holding a comfortable advantage, he eased through the final leg to add to his season-opening win in Monte-Carlo.
“After the struggle we had in the last round, it’s fantastic to be back on the top step of the podium again,” he said.
“I had a new car in Monte-Carlo and we won. I had a new car here and we won. I’m not sure if the team can afford to give me a new car for every rally!”
Remarkably, Ogier was one of seven different drivers to lead this sixth round of the season. Belgian Neuville was another. He topped the standings in his Hyundai i20 Coupe after Thursday night’s opening speed test, but slipped away before recovering to second.
Neuville, targeting a hat-trick after victories in Corsica and Argentina, changed his driving style in a bid to regain top spot however conceded defeat early on Sunday morning. Nevertheless he moved up to second in the title battle, 22 points behind Ogier.
Team-mate Dani Sordo finished a further 46.1sec behind in third. The Spaniard struggled with the handling of his i20 on the dusty gravel roads and could not fend off Ogier and Neuville after lying second earlier in the weekend.
Ott Tänak looked to be the man to beat on Saturday. He led before swiping a bank and breaking his Fiesta’s suspension and brakes. He recovered to finish fourth, almost half a minute adrift of Sordo.
Craig Breen was again the leading Citroën C3 driver in fifth, the fourth occasion in six rallies he has occupied that position. He was 27.2sec adrift of Tänak, but well over a minute clear of Elfyn Evans’ Fiesta.
The championship reaches its midpoint next month at Rally Italia Sardegna. The four-day gravel fixture is based in Alghero on June 8 – 11.
1. S Ogier / J Ingrassia FRA Ford Fiesta 3hr 42min 55.7sec
2. T Neuville / N Gilsoul BEL Hyundai i20 +15.6sec
3. D Sordo / M Marti ESP Hyundai i20 +1min 01.7sec
4. O Tänak / M Jarveöja EST Ford Fiesta +1min 30.2sec
5. C Breen / S Martin IRE Citroën C3 +1min 57.4sec
6. E Evans / D Barritt GBR Ford Fiesta +3min 10.6sec
FIA World Rally Championship (round 6 of 13):
1. S Ogier 128pts
2. T Neuville 106pts
3. J-M Latvala 88pts