Bartholomew (Bart) Ulufa'alu CMG (25 December 1950 – 25 May 2007) was the prime minister of Solomon Islands from 27 August 1997 to 30 June 2000.

He was able to muster a slender majority to defeat veteran politician Solomon Mamaloni for the position of prime minister in 1997.

Ulufa'alu was faced with difficult economic problems: debts were high, government spending was out of control, and logging was occurring at an unsustainable rate.

He set about implementing much-needed reforms to improve government financial management and cut down on corruption; however, he was constantly harassed by motions of no confidence (in November 1997, April 1998, and September 1998), the last of which he only won in a tied vote.

In June 2000, as prime minister, he was kidnapped by militia members of the MEF who felt that although he was a Malaitan, he was not doing enough to protect their interests.

Sogavare's election was shrouded in controversy because six MPs who were alleged supporters of Boseto were unable to attend parliament for the crucial vote.

However, on 18 April 2006, the announcement that Rini had been elected prime minister led to the 'April Riots', which resulted in three days of looting and property damage in Chinatown and, to a lesser extent, the Honiara CBD and its industrial area, Rinadi.

In the aftermath, Sogavare switched sides and rejoined the GCC in return for which, he was nominated as their prime ministerial candidate and was duly elected on 5 May 2006.