WASHINGTON—President Obama nominated Robert Barber, a Boston attorney and top Obama fundraiser, as ambassador to Iceland Tuesday evening.

Barber headed Obama’s New England fundraising team for his 2012 re-election campaign, bundling $1.68 million for the president in the last election cycle and a total of nearly $3 million since 2007, according to the New York Times fundraising analysis.

Barber, a partner at the Looney & Grossman law firm, joins a long line of top campaign fundraisers who have been rewarded with diplomatic posts by presidents of both parties.

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Barber took over as chairman of Obama’s New England Steering Committee in 2009 after Alan Solomont, a prominent Democratic fundraiser, was named ambassador to Spain. Solomont, who returned to Boston in August, will host a fundraiser for Obama at his Weston home Wednesday evening following his health care speech at Faneuil Hall.