Generally, yes. But it is really at your own discretion and depending on your floorplan. If it is an open concept, yes, the floors should be stained to match. If the kitchen is a separate space, you have a little more flexibility. Although, having them match throughout the house will always look best.

Yes - it would look ridiculous to have your floors one type of wood and stain throughout 9 rooms of the house and a completely different wood and stain within the tenth.

They should probably match, and they should be tied in so it reads as one continuous floor. It will flow better and look more expansive. Good luck.

It also depends on the style/age of the home. I have a vintage house and the kitchen floor has always been different from the rest of the house. In a more modern house, the look would be different, but I have a swinging door between the kitchen and the dining room.

The vintage house I'm rehabbing now will have several different floors as I'm using reclaimed wood and don't have enough of any one type to do an entire house. Since I'm laying and finishing them all at one time, all the wood will have the same height and sheen. We just laid a piece of maple straight across the floor at the beginning of the kitchen area and continue going forward from there. Sometimes you look for a cozy feel and a visual separation and that may mean changing up the flooring

depends on the layout? can you explain further?

Thanks everyone. The flow isn't completely open, but the kitchen can be viewed from the dining room. Part of the concern was that we want dark wood floors, and worry it might be too dark for a kitchen.