 | 2nd Friday Happy Hour | Art Mattson |
| | Actually does meet on the 2nd Friday. Socializing, eating & drinking with friendly and distinguished group. |
 | 2nd Saturday Good Movies | Jim Porter |
| | We see "art films." We decide on the movie in front of the theater. After, we get a bite to eat, and share impressions. |
 | 3rd Friday at Hollingshead's | John Olsen |
| | Actually does meet on the 3rd Friday. Socializing, eating & drinking at friendly neighborhood joint. Good microbrews & sandwiches. |
 | 8-Ball Brigade | Sean Meade |
| | A happy hour where some (but not necessarily all) play pool. Meets first Wednesday of the month (except holidays) at Danny K's in Orange. |
 | Bad Movies | Bill Jordan |
| | We watch movies so dreadful that no one cares if they miss a line or even a plot point. We talk back, act up, and put down dreadful masterpieces of cine. |
 | Beerhunters | John Olsen |
| | A movable beer feast. We visit a different brewpub on the 1st Friday of each month. Socializing, eating & drinking. Call for tips on spotting us. |
 | Brunch Davidians | David Lubman |
| | Thursday lunch and sparkling conversations in the greater Costa Mesa area often continues past 2 PM. New visitors are welcome. |
 | Chocolate Lovers | Barry Stone |
| | Meets twice a year to taste homemade chocolate goodies and vote; bring enough for all to taste. Prizes awarded. We may show "Willie Wonka." |
 | Dictionary | John Olsen |
| | Is the classic parlor game in which players make up definitions to obscure words to earn points and, sometimes, laughs. Small, friendly crowd. |
 | GenX SIG | George Blombach |
| | Open to all Mensans born between 1961 and 1981. We have a variety of local monthly activities including museum trips, barbecues, and hikes. Activities are also coordinated with other GenX groups nationally. Local event notifications can be found at http://groups.yahoo.com/group/SoCal-GenX and National GenX information can be found at http://genx.us.mensa.org. |
 | GenY SIG | Lauren Rahn |
| | For all you spiffy Mensans born between 1976 and 1988. We rock. Online. (http://groups.yahoo.com/group/gen-yms). Currently seeking "live" local coordination while the SIG coordinator hangs in France. |
 | Gray Matter Red Hatters | Cookie Bakke |
| | Membership is limited to "mature ladies" of AARP age, and all members must attend meetings wearing a purple outfit with a red hat. |
 | Heaven's Plate (on hiatus) | Marcia King |
| | To uphold the philosophy of "Life's uncertain, eat dessert first," this group meets (sporadically) to savor desserts offered by various OC restaurants. |
 | High Technology and Business Networking Forum | Tom Fedro |
| | Meets on an informal basis to exchange information and contacts into local high-tech companies, discuss job leads and review new technologies emerging in OC. |
 | Human History | David Lubman |
| | We meet twice monthly at a members home to view DVD lectures about anthropology and archaeology and discuss their meaning. |
 | M-Atheists | Linda Kaplioff |
| | This group is for members who freely admit to being atheists (or something close to it--we do have a few who call themselves "agnostics") and wish to share their ideas and experiences with other Mensan atheists. http://groups.yahoo.com/group/M-Atheists/ |
 | M-Possible | Michelle Lamb |
| | This is an internet-based SIG that meets at http://groups.yahoo.com/group/M-Possible. Most members are Mensans. We're faceless friends who enjoy amiable conversations about anything but religion and politics. |
 | Midweek Madness Happy Hour | Sean Meade |
| | A once-a-month Wednesday escape from the workweek frenzy. We enjoy good conversation & food in a relaxed atmosphere. |
 | Night on the Town (NOTT) | William Bandaruk |
| | A dinner and theater event that meets two or three times per year. We visit the Orange County Performing Arts to enjoy a musical. |
 | Out to Lunch Bunch | David Lubman |
| | Tuesday lunch group meets in the greater Fullerton area. Discuss ideas and exchange jokes with a dozen interesting and friendly people. |
 | SIG, Eccentric! | Paul McGinnis |
| | Hosts distinctly different events from the standard Mensa fare; past events have included maritime festivals, tiki bars, concerts, outings to nudist beaches and more. |
 | Sociables | Thea Wills-Olsen |
| | A fun-loving social group for the (used to be) young and the young at heart. Meets 3rd Saturday of every month. OC Mensa's longest running party. |
 | Words 'R' Us | Linda Kapiloff |
| | Meets 4th Sat. every month to play Scrabble. All levels welcome. Location varies. Bring own beverage and a snack to share. Board not necessary. |