Liberal thinker Marcus Raskin, 51, senior fellow at the Institute for Policy Studies, is to marry Lynn Randels, 39, a political consultant who was formerly on President Carter's Commission on Hunger, May 4 at the Phillips Gallery. It is Raskin's second marriage and Randels' first . . .

Duran Duran, the Beau Brummells of British pop music, will perform the title song for the upcoming James Bond movie, "A View to a Kill," which stars Roger Moore, Grace Jones and Christopher Walken. The song is cowritten with veteran movie composer John Barry . . .

Bruce Springsteen may be singing in Ireland at last. Residents of a village north of Dublin have dropped the threat of legal action over an open-air concert after receiving pledges of security. The residents feared a repetition of violence that occurred at the same site at a Bob Dylan concert last year . . .

Some 1,000 children will be auditioned for still another Ethiopian famine relief record for 40 parts in a children's version of "We Are the World" . . .

Yasmin Aga Khan, daughter of the late Prince Aly Khan (former ambassador to the United Nations for Pakistan) and ailing actress Rita Hayworth, will marry Greek shipping heir Basil Embiricos this summer. The announcement was made yesterday in Chantilles, France, by Yasmin Khan's half-brother, Prince Karim, also known as the Aga Khan -- the spiritual leader of a network of Ismaili Moslems. The marriage will take place "somewhere overseas," and the couple will reside in New York or London. Yasmin Khan, who is president of Alzheimer's Disease International, spends much of her time caring for her mother, who suffers from the affliction . . .

For what it's worth. A downtown public-opinion poll conducted by the Connecticut Connection showed that 73 percent of the 1,179 people asked did not agree with President Reagan's decision to visit the Bitburg cemetery in West Germany next month. The poll, conducted between Tuesday and Wednesday of this week, showed that 83 percent of the females responding opposed the Reagan decision, compared with 65 percent of themales . . .

Secretary of Education William Bennett hasn't been making many friends in the educational community with his opposition to low-interest student loans and other areas many educators hold dear. He was out on the Mall yesterday pitching for the department's softball team -- as an aide said, "We're trying to lighten up his image a little bit" . . .