Seasonal is a theme designed to celebrate special occasions and holidays. It was first introduced in 1977, then 1985-1986, and then from 1989 to 1992, and 1995, and since 1997.
Sets
Advent Calendars
- 1298 Basic Advent Calendar - 1998
- 1076 Advent Calendar - 1999
- 2250 Holiday Advent Calendar - 2000
- 4124 Countdown to the Holidays - 2001
- 4524 Advent Calendar - 2002
- 4024 Advent Calendar - 2003
- 4924 Advent Calendar - 2004
- 7575 CLIKITS Advent Calendar - 2004
- 7324 LEGO City Advent Calendar - 2005
- 7574 CLIKITS Holiday Gift Calendar - 2005
- 4424 Advent Calendar - 2005
- 7904 City Advent Calendar - 2006
- 7907 City Advent Calendar - 2007
- 7600 Belville Advent Calendar - 2007
- 7724 City Advent Calendar - 2008
- 7979 Castle Advent Calendar - 2008
- 7687 City Advent Calendar - 2009
- 6299 Pirates Advent Calendar - 2009
- 2824 City Advent Calendar - 2010
- 7952 Kingdoms Advent Calendar - 2010
- 7958 Star Wars Advent Calendar -2011
Christmas
- 246 Santa and Sleigh - 1977
- 1127 Santa - 1999
- 1128 Santa on Skis - 1999
- 1129 Santa on Reindeer - 1999
- 1177 Santa's Truck - 2000
- 1549 Santa and Chimney - 1992
- 1555 Santa Claus - 1986
- 1624 Holiday Cheer Bag - 1991
- 1625 Snowman - 1989
- 1626 Angel - 1989
- 1627 Santa - 1989
- 1628 Santa with Reindeer and Sleigh - 1989
- 1807 Santa Claus and Sleigh - 1995
- 1978 Santa Claus - 1991
- 1979 Snowman - 1991
- 1980 Santa's Elves - 1991
- 2010 Happy Holidays - 2010
- 2878 Santa Claus - 1998
- 2878 Santa Claus Mos Burger Gift Box 1 - 2001
- 2878 Santa Claus Mos Burger Gift Box 2 - 2001
- 2878 Santa Claus Mos Burger Gift Box 3 - 2001
- 3953 Santa Key Chain - 2000
- 4287 Santa Minifigure Snow Globe - 2005
- 4759 Christmas Decorations - 2004
- 7220 Snowman - 2004
- 7224 Christmas Promotional Set - 2003
- 10068 Santa - 2002
- 10069 Tree - 2002
- 10070 Reindeer - 2002
- 10079 Snowman - 2003
- 10080 Angel - 2003
- 10106 LEGO Snowflake - 2006
- 10135 CLIKITS Holiday Decoration Kit - 2004
- 10165 Elf Boy - 2004
- 10166 Elf Girl - 2004
- 10173 Holiday Train - 2006
- 10199 Winter Toy Shop - 2009
- 10216 Winter Village Bakery - 2010
- 30008 Snowman - 2009
- 30009 Christmas Tree - 2009
- 40000 LEGO Cool Santa Set - 2009
- 40001 LEGO Santa Claus - 2009
- 40002 LEGO X-mas Tree - 2009
- 40003 LEGO Snowman - 2009
- 850150 Santa Key Chain - 2006
- 851680 Santa Gift Wrap and Tags - 2007
- 851841 Gift Wrap Santa Mini-Figure & Tree - 2007
- 852116 Santa Gift Bag - 2007
- 852119 Santa Magnet Set - 2007
- 852124 Santa Stocking - 2007
- 852133 Santa Holiday Cards - 2007
- 852461 Gift Tag Stickers - 2008
- 852462 Wrapping Paper - 2008
- 852741 LEGO Holiday Countdown Candle - 2009
- 852742 LEGO Holiday Magnet - 2009
- 852744 LEGO Holiday Ornaments - 2009
- 852745 LEGO Metallized Magnet Set - 2009
- 2855167 Holiday Santa Magnet 2010 - 2010
- 4204330 Santa Key Chain
- 4285957 Santa Carabiner Pen
- 4287988 Santa Mini-Figure Snow Globe - 2006
- 4499563 Gift Wrap Santa Mini-Figure & Tree
- 4520527 Holiday Greeting Cards
- 4541575 Gift Tags Stickers
- 4499565 Xmas Magnet Set - 2006
- Hallmark LEGO Fireplace
- Hallmark Santa's LEGO Sleigh
- K2159 Holiday Train Starter Collection - 2006
- K10168 Holiday Kit
- K10173 Complete Holiday Train Collection - 2006
- K10179 Holiday Decorations
- KGW563 Gift Wrap & Tags
- LEGOland California Christmas Tree
- LEGOland California Sitting Santa
- LEGOland California Sleigh
- LEGOland California Reindeer
- M565 Holiday Magnet Set
- P3112 Santa Pen
- P3509 Santa Carabiner Pen
- PF68 Holiday Picture Frame
Easter
- 1263 Build-A-Bunny - 2000
- 1264 Easter Chickens - 2000
- 1545 Build-A-Rabbit
- 1551 Chick - 1985
- 1677 Rabbit - 1990
- 4710 Rabbit
- 10071 Mr. Bunny - 2003
- 10168 Mrs. Bunny
- 10169 Chicken and Chicks
- 40005 Easter Bunny - 2010
- 852216 Easter Magnet Set - 2008
- 885217 Plush Bunny with DUPLO Bricks - 2008
- 4212838 Easter Chick
- 4212847 Easter Chick in Egg
- 4212850 Easter Egg Orange
- 4212852 Easter Egg Blue
Halloween
- 3047 Halloween Bucket
- 3731 Pumpkin Pack - 2000
- 7836 Halloween Creator Small Bucket
- 40012 Halloween Pumpkin Pack - 2010
- 40013 Ghost - 2010
- 40014 Bat - 2010
- K3731 3D Pumpkin Pack Kit - 2000?
- LEGOLAND California 3D Witch
- LEGOLAND California Build N Buy Pumpkin (Happy)
- LEGOLAND California Build N Buy Pumpkin (Sad)
Independence Day
- 10042 U.S. Flag - 2004
Thanksgiving
- 10090 Turkey - 2003
- 40011 Turkey - 2010
Valentine's Day
- 2008 Heart - 2008
- 2009 Heart - 2009
- 40004 Heart - 2010
- 852786 Rose - 2010