WeWork wants an early Christmas present from Jeff Bezos: A big Amazon office lease at its empty former Lord & Taylor building, once home to famous holiday windows.

The shared office space startup, which bought the Fifth Avenue building in January, has been in talks to rent as much as the entire 12-story building to Amazon, the Wall Street Journal reported Thursday.

As The Post’s Lois Weiss reported on May 27, Amazon — which famously walked away from a regional headquarters deal in Long Island City in February — is beating the bushes all over town for more elbow room for its 5,000-strong workforce and more to come.

Among the locations being scouted by Amazon are Brookfield’s soon-to-rise Two Manhattan West and Vornado’s Farley Post Office building project on Ninth Avenue, Weiss reported.

Still, sources warned that talks might be used to strengthen Amazon’s hand in negotiations with other landlords as it searches for space.

“Amazon plays it this close to the vest about real estate. I wouldn’t take anything as true until it happens,” one prominent real estate source said.

WeWork, meanwhile, is scrambling to nail down a lease commitment for at least part of Lord & Taylor’s 800,000 square feet ahead of a public offering in September.

“An empty, landmarked building on Fifth Avenue is not the signal they want to send to investors as they ready their IPO,” an insider said.