She was Tauranga woman Kellie Jane Greer, 49, the driver of one of the vehicles.
One of the vehicles caught fire after the crash at the intersection of SH30 and SH32 at midday.
On Thursday evening, a man was killed on SH2 at Mangatawhiri, 60km south of Auckland.
The victim was Kalam Safari Watkin-Mamode, 22, who lived at Mangatawhiri.
About 90 minutes earlier on Thursday, at 8pm, a person was killed in a crash involving a truck and a car on SH27 in the Waikato settlement of Kaihere.
Three others received moderate injuries in the crash.
Investigations into the crashes were ongoing, police said.
The five deaths mark a rise from the Easter road toll last year when no fatalities were recorded while the country was in level-4 lockdown to stop the spread of Covid-19.
In 2019, the New Zealand Easter road toll was four.
Waka Kotahi/NZTA Auckland operations manager Rua Pani said there were simple things motorists could do to stay safe on the roads.
"Check your vehicle is safe to drive. Check your tyres, wipers, lights and indicators, and ensure you have a valid Warrant of Fitness before you leave," said Pani.