Mayor Marion Barry, who has yet to formally announce his candidacy for a third term, has raised $149,650 in campaign contributions in less than two weeks, according to a finance report filed yesterday by his campaign committee.

In contrast, the two announced candidates for mayor together have raised less than $3,000.

Mattie Taylor, a former D.C. Department of Employment Services official, reported $1,445 in contributions for January and February and $1,322 after expenses.

Dennis Sobin, the publisher of a sex magazine, reported $1,069 in contributions and $939 in cash on hand.

The reports were filed with the D.C. Office of Campaign Finance.

The Citizens to Reelect Mayor Barry held a $1,000-a-plate breakfast at the Washington Hilton last week to kick off the mayor's fund-raising efforts.

The Barry finance report listed 112 large contributors, including 25 who gave $2,000 each and 87 who contributed $1,000 apiece.

Barry's $2,000 contributors included:

District Cablevision Inc., the District's cable television franchisee; the Gertrude Stein Democratic Club; Ann R. Kinney, Barry's finance chairman; lawyer Max N. Berry, a top official of Barry's reelection campaign; the Sigal Construction Corp.

The United House of Prayer, headed by Bishop Walter McCollough; the Washington Wholesale Liquor Co. Inc.; Devrouax and Purnell, an architectural firm that has worked on a number of city projects; Peggy Cooper Cafritz, a D.C. arts commissioner; Merrill Lynch Pierce Fenner & Smith Inc., and Montgomery Village Associates II, a real estate firm.

Among the $1,000 contributors were political action committees for the American Security Bank and the Washington Chamber of Commerce; Black Entertainment Television, the cable network headed by Robert Johnson, who is also president of District Cablevision Inc.; the William Calomiris Investment Corp.; lawyer Robert Cadeaux and developers Oliver T. Carr Jr. and Jeffrey N. Cohen, a close Barry friend who is heading a city-backed project to redevelop the Shaw neighborhood.

Also, John W. Hechinger, a businessman and the D.C. Democratic national committeeman; Brevard Brothers Inc., one of the partners in a joint venture that holds a multimillion-dollar sludge removal contract with the city; P. Leonard Manning, a top official for the firm that manages the District's lottery contract; Robert Linowes, a real estate attorney with the firm of Linowes and Blocher; and Robert Mendelsohn, a former Interior Department official who is now a consultant.

Last week Barry held a nonpolitical birthday party for which 80 "patrons" contributed $500 each, 700 "sponsors" gave $50 apiece and thousands paid $15. The money was to be used to pay the estimated $100,000 cost of the party.

Although seven D.C. City Council members are up for reelection this year, none has formally announced reelection plans although several have formed campaign committees.

City Council member Betty Ann Kane (D-At Large) was the only member whose March campaign finance report was made available for review yesterday by the campaign finance office. Kane reported receiving $9,240 in contributions during January and February, including $1,000 contributions from theater owners Theodore and James Pedas, Randall H. Rolfe of the Washington Health Care Corp., and Riggs Leasing Inc. The law firm of Pohoryles & Greenstein gave $500 and lawyer Alfred M. Goldberg contributed $250. Kane reported a total of $30,233 in cash on hand.

Three announced candidates for the Ward 3 seat held by retiring City Council member Polly Shackleton filed reports that were made available yesterday.

Ruth Dixon, a political scientist, received $13,199 since January and reported having $11,020 in cash on hand.

Mark Plotkin, a member of the D.C. Democratic State Committee, reported receiving $3,860 since Jan. 31 and had $9,930 in cash on hand.

Jim Nathanson, a teacher, reported receiving $1,835 since January and had $8,976 in cash on hand.