If your New Year's resolution involves getting a little more cultural enrichment in 1982, suburban Maryland offers many opportunities. With its many arts centers, galleries, theaters and musical organizations, the area offers plenty of events to help residents become involved in the arts--either as a spectator, a participant or both. Here are a few ideas for starters:

* Traditional Arts: The Folklore Society of Greater Washington, which sponsors productions and workshops of traditional music, performs at the Washington Ethical Society auditorium, 7750 16th St. NW in the District, just a few blocks across the District line from Silver Spring.

Last week, the society presented a pageant of 15th and 16th century carols and a mummers' play accompanied by a fiddle, melodeon and concertina. Tomorrow at 8:30 p.m., a concert of fiddling, pipe music and tin whistle tunes of the British Isles will be presented.

The society will participate in an all-day mid-winter folk festival with workshops, concerts and a dance finale Jan. 23. Later in the winter, storyteller Jackie Torrance will talk about southern black folklore. The society also has an informal singing group, which performs without accompaniment. Call 281-2228 for more information.

* Auction: The Montgomery County Arts Council has set Feb. 20 as the date for its second annual dinner and silent auction. This year's chairman is William B. Snyder, president of Geico. Auction items will include original art works, dance lessons and tickets to theater performances. Proceeds will go to the council's grants program, which gives money to eligible arts groups for innovative projects, and awards fellowships to individual artists. Corporations support the project by purchasing tables for the dinner. Call 424-2470 for more details.

* Operafest III: World-premier performances of short operas and workshops on opera in Prince George's County have gained national attention. This year's opera festival at the Prince George's Publick Playhouse will take place Jan. 22, 23, 24 and 29, 30 and 31. Call 277-1710 for more information.

* Discounts: The Maryland Recreation and Parks Association is offering "Entertainment '82" coupon books for $25, containing 2-for-1 offers for theater productions, concerts and shows all over the Washington area. Call 249-9220 for more information.

The Cultural Alliance of Greater Washington's TICKETplace--the half price, day of performance ticket booth at 12th and F streets NW in Washington--is continuing to attract arts organizations and patrons. Call 842-5387 for ticket information and hours of operation.

* Directories: Another product of the Cultural Alliance is its Washington Cultural Directory, which contains information on 400 local arts organizations and 600 individual artists. It can be used to locate local arts facilities, programs and managers. The cost is $10.95. Call 638-2406 or write the Cultural Alliance of Greater Washington, 805 15th St. NW, Suite 419, Washington D.C. 20005.

Complementing this directory is the first edition of the Maryland Cultural Resources Directory. It lists 325 cultural organizations in Maryland, ranging from children's programs to visual arts organizations. Contact persons, addresses, auditorium capacities and descriptive information on the organizations are included. Officials of the Maryland Cultural Resources Inc., its publisher, say they hope the directory will help develop regional cultural planning, cooperation and programming, as well as bolster the cultural information network. The cost is $4. Write MCR Inc., Foundation House, 6 Hamilton St., Baltimore, Md. 21202.

* Brief note: The Boys Choir of Harlem comes to F. Scott Fitzgerald Theatre in Rockville Friday, Saturday and Sunday at 2 p.m. Call 424-3184 for details.