Glenn Close Divorcing Hubby #3

Glenn Close's third marriage was not the charm ... she's getting divorced again.

Close and her biotech entrepreneur husband David Shaw are calling it quits after 9 years of marriage. The couple married in 2006.

Close was previously married to singer-songwriter Cabot Wade from 1969-1971, and then to businessman James Marlas from 1984-1987.

The split is reportedly amicable, which is good ... because we all know what a contentious split from Glenn Close looks like.