- Baader Kaley, Mary
- Bach, Ari
- Bachman, Richard
- Bacigalupi, Paolo
- Backman, Fredrik
- Baggott, Julianna
- Bailey, Dale
- Baker, Kage
- Baldree, Travis
- Ballantine, Philippa
- Ballard, JG
- Banks, Iain M
- Bannerman, K
- Bannister, Andrew
- Barclay, James
- Barker, Clive
- Barnes, Adrian
- Barnes, Colin
- Barnes, John
- Barnes, Steven
- Barry, Max
- Basu, Samit
- Battersby, Lee
- Baxter, Alan
- Baxter, Stephen
- Beal, Clifford
- Bear, Greg
- Beaulieu, Bradley
- Beckett, Chris
- Benford, Gregory
- Benham, Sean
- Benn, Mitch
- Bennett, Robert Jackson
- Bennett, Robin
- Bergen, Andrez
- Berman, Jude
- Berry, Steve
- Bester, Alfred
- Beukes, Lauren
- Bienvenu, Ugo
- Bigelow, Susan J
- Binge, Nicholas
- Birmingham, John
- Black, Holly
- Blacker, Terence
- Blackmoore, Stephen
- Blackmore, Keith
- Blackthorne, Thomas
- Blackwell, Evelyn
- Blake, Lloyd
- Blaylock, James P
- Boccacino, Michael
- Bockoven, Mike
- Boone, Ezekiel
- Bova, Ben
- Bowling, Nicholas
- Boyne, John
- Bradbury, Ray
- Bradley, James
- Brannan, J T
- Brewer, Richard
- Briggs, Andy
- Brin, David
- Broaddus, Maurice
- Brook, Oldman
- Brooks, Max
- Brooks, Mike
- Brown, Eric
- Brown, Josie
- Brownstein, Ted
- Brunner, John
- Bruno, Rhett
- Bryce Olukotun, Deji
- Bryenton, DDD
- Buckley, Andrew
- Budrys, Algis
- Bujold, Lois McMaster
- Bullington, Jesse
- Burgess, Brooke
- Buroker, Lindsay
- Burrows, David
- Butcher, Jim
- Buxton, Carmen Webster
- Byers, Richard Lee
- Byrne, Monica