I can't find a good website that keeps track of these, so I've put together what I can find. Add to the thread if you find anything neat.
Monday, Nov. 28, 2022 @ 6PM
Church Street Holiday Stroll , Vienna
https://www.viennava.gov/residents/concerts-and-events/church-street-holiday-stroll
Nov 29 @ 7PM pre-, 7:30 start. Messiah Sing-Along Clarendon UMC 606 N Irving St, Arlington, VA
https://www.clarendonumc.org/events/concerts/
Dec 3: Scottish Christmas Walk Parade, starts 11AM Old Town Alexandria.
https://visitalexandria.com/holidays/biggest-weekend/
Dec 3: Boat parade, Alexandria - festivities start 2PM, parade @ 5:30
https://visitalexandria.com/holidays/boat-parade/
More Alexandria Christmas stuff here, scroll down:
https://visitalexandria.com/holidays/biggest-weekend/
December 3, 4PM & 7:30 Reston Chorale The Wonder of the Season @ Reston Community Center
https://www.restonchorale.org/concert_schedule.html#holiday
Dec 3 @7-9PM Pender UMC Holiday Concert 12401 Alder Woods Drive, Fairfax, VA US 22033
https://penderumc.org/event/7894223-2022-12-03-holiday-concert/
December 4 @ 4:00 pm Fairfax Choral Society "Songs of the Season"
https://www.fairfaxchoralsociety.org/ Annandale United Methodist Church, Annandale, VA, 22003
Tuesday, Dec 6 2022 Reston Chorale Messiah Sing-Along @ 7:30 Saint John Neumann Catholic Church: 11900 Lawyers Rd Reston, VA
https://restonchorale.networkforgood.com/events/48977-g-f-handel-s-messiah-sing-along
December 6 @ 7:00 pm Fairfax Choral Society Youth Chorus "Alleluia, Rejoice"
Annandale United Methodist Church, Annandale, VA, 22003
https://www.fairfaxchoralsociety.org/
Dec 10 @ 6:30 - 8PM Herndon High School Madrigals Caroling Concert at Herndon United Methodist Church, 701 Bennett St Herndon VA. No direct link; see
https://www.herndonhschoir.com/blank-3
Saturday, Dec 11 SOS Christmas Party @ 2:15PM , Fairfax Church of Christ 3901 Rugby Road Fairfax, VA 22033. Register by 9th.
https://fxcc.churchcenter.com/registrations/events/1524702
December 11 @ 4:00 pm - 5:30 pm VPC Cathedral Brass Concert
Vienna Presbyterian Church 124 Park Street, NE, Vienna, VA
https://www.viennapres.org/event/cathedral-brass-concert-2/
December 11 @ 7:00 pm Christmas with FCS, Symphonic Chorus, Master Singers & Concert Choir
Annandale United Methodist Church, Annandale, VA, 22003
https://www.fairfaxchoralsociety.org/
Saturday, December 17th, 11 am- 3 pm, Fairfax Church of Christ 3901 Rugby Road Fairfax, VA 22033, Parents' Afternoon Out. Register by 16th
https://fxcc.churchcenter.com/registrations/events/1510550
December 16, 2022 - 11:30AM-1:30PM, First Baptist Church Vienna "Holiday Jazz Brunch" 450 Orchard St NW, Vienna, VA 22180
https://www.fbcv.org/events#&gid=1755876495&pid=9
December 16, 2022 — 5:30 p.m. - 8:30 p.m.December 17, 2022 — 5:30 p.m. - 8:30 p.m. Mount Vernon "Christmas Illuminations at Mount Vernon" fireworks, winter market, reenactment stuff. Pricey, but sounds pretty neat. Mansion tour tickets sold out already(!), but the outside stuff is still available.
https://www.mountvernon.org/plan-your-visit/calendar/events/christmas-illuminations-at-mount-vernon/
Sunday, December 18 @ 7:00 pm - 8:30 pm VPC Glorious Sounds of Christmas
Vienna Presbyterian Church 124 Park Street, NE, Vienna, VA
https://www.viennapres.org/event/glorious-sounds-of-christmas/
Dec 22 & 23 7:00 pm - 9:00 pm Living Nativity @ Fairfax Circle Church Fairfax Circle Church 3110 Chichester Ln, Fairfax
https://www.fairfaxcirclechurch.org/event/living-nativity-2/2022-12-22/
Friday, Dec 24 @ 1PM Water-Skiing Santa @ Old Town Alexandria Waterfront. Web page is down, but FB page says it is happening.
http://www.waterskiingsanta.com/
Nov 11 - Jan 8 : Bull Run Festival of Lights. This is a drive-through event, except for the "Holiday Village" at the end, which looks like it is open daily, maybe? Can't tell. Lights are running a whole week longer this year. It's cheaper early & after Christmas.
https://www.novaparks.com/events/bull-run-festival-of-lights
Nov 11 - Jan 8: Meadowlark Winter Walk of Lights @ Meadowlark Park : 5:30pm-10:00pm
https://www.novaparks.com/events/winter-walk-of-lights
Novemberish - Januaryish Holly's Tacky Christmas Lights. Holly does an amazing job keeping track of houses in the area that are definitely worth gawking at:
http://www.fairfaxchristmaslights.com .
Nov. 25-26, Dec. 2-3, Dec. 9-10, Dec. 18 - Mount Vernon By Candlelight @ Mount Vernon
https://www.mountvernon.org/plan-your-visit/calendar/events/mount-vernon-by-candlelight
November 18, 2022 - January 1, 2023 - 5:00 p.m. to 10 p.m. Ice & Lights at Cameron Run Park
https://www.novaparks.com/events/ice-lights