National Union of Healthcare Workers (NUHW) is an American labor union based in Emeryville, California, that represents 19,000 healthcare workers in California.

It was formed in 2009 after a split with the SEIU United Healthcare Workers West.

The leaders of SEIU-UHW at that time, including President Sal Rosselli, resisted efforts by SEIU International to control the local's democratic decision-making process against the will of its members and in violation of the local's constitution.

The local's leadership (Rosselli) and the international leadership were at odds over the proposed removal of 65 000 long term healthcare workers into the LA based local 6434 run by the corrupt Tyrone Freeman.

Following SEIU International's implementation of the trusteeship, SEIU-UHW rank-and-file leaders voted to form NUHW, and thousands of members soon voted to leave SEIU-UHW and join NUHW.