C. Douglas Dillon, investment banker and former secretary of the Treasury, probably doesn't need it, but he has some unclaimed money lying around in a Washington bank account, and if he doesn't come get it by Aug. 30 it will be turned over to the D.C. government.

Conservationist Gifford Pinchot has money coming, too, but his chances of collecting are probably slim since he died in 1933.

If the Maret School Alumni and the members of the Touchdown Club and the French Military Attache want to get back what belongs to them, they, too, must put in their claims by Aug. 30 or lose their property to the city.

They are among more than 6,000 individuals and organizations named on a list published in The Washington Post today by the D.C. Department of Finance and Revenue. They are the owners of record of abandoned property and dormant accounts held by District banks, savings institutions, insurance companies and corporations. Under a new city law, all the money and property in these accounts will be turned over to the city if not claimed by the end of next month.

The unclaimed property -- bank accounts, insurance policies, cash, stock certificates, uncollected paychecks, the contents of safe deposit boxes -- is worth at least $10 million, according to Finance and Revenue officials. Since many of the owners are dead and many of the institutions defunct, the city government expects to claim much of the total for the cash-strapped municipal treasury.

Under the new District law, which is similar to statutes in many states, the city government is entitled to claim uncollected or abandoned property such as savings accounts after publishing a notice to the owners of record. Today's list, which appears in The Post's District Weekly, a special section of the newspaper distributed inside the District of Columbia, constitutes that notice.

Each name is followed by a five-digit code number that identifies the bank or institution holding the abandoned property or dormant account. If the owner does not make a claim to that bank or institution by Aug. 30, the property is turned over to the city. According to Willie T. Robinson, an official of the unclaimed property office in Finance and Revenue, the city will hold half of it against future claims and spend the other half, on the assumption that owners have died.

Many of them no doubt have, since some of the accounts are decades old.

Besides Pinchot and Dillon, the list includes the names of Anne Archbold of the prominent Archbold family, who died in 1968, and former ambassador Anthony J. Drexel Biddle, who died in 1948.

Also on the list are many people who live outside the United States and are unlikely to see the District Weekly. No addresses are listed for many of the names on the list, but those with addresses include residents of Colombia, Sweden, Greece and Great Britain.

Robinson said the biggest single account, consisting of stock certificates and accumulated unclaimed dividends, is probably worth more than $20,000. The value of the individual accounts will not be disclosed, but most are small amounts that their owners simply forgot about, such as school savings accounts. Banks and savings institutions generally supported enactment of the law because it allows them to clear such dormant accounts from their books.

Under the law, the difinition of abandonment vaires. Bank accounts are considered dormant after 10 years, but paychecks can be seized if left uncashed a year after they have been issued.

"Isn't that interesting?" said former City Council chairman Gilbert Hahn Jr., whose anem is on the list. "It's most likely an odd amount of money in an old building and loan account I thought was closed out . . . or maybe it's in the estate of a bachelor uncle we never cleared up. How can I find out?"

He and the others on the list can find out, beginning today, by calling the telephone number published with the list. Some of the answers promise to be interesting.

What was "Operation Reindeer?" Whose "Leap Year Dance Committee" left money sitting around? Who represents the "Friends of McGovern Committee?" How old is the "Siamese Embassy" account? How does it hapen that the Internal Revenue Service, the U.S. Treasurer and the United States aid mission to Yemen are of the list? Or the Embassy of Pakistan or the Deanery of the yepiscopal Archdiuocese of Washington?

Some of the names are listed in inverted or abbreviated formats that would make it difficult for the owners to find themselves, even if they should see the notice. The owner of Chicken Heaven should look under H for "Heaven, Chicken." Also under H is Herald, as in Times-Herald, a newspaper purchased by The Washington Post in 1954. A political committee of campaigns past appears under T, for "To Reelect Pres Finance Comm."

And one owner, presumably a physician, may not recognize himself in this listing: "Gastro, enteroly."